WARMTH ENGINEERED

Polar Fleece Fabric

Q: Is polar fleece actually warm?

Yes — polar fleece is extraordinarily warm for its weight. The construction creates a dense network of polyester fibers that trap body heat in tiny air pockets, providing roughly 10× the insulation of cotton at the same weight and 2× the warmth of unlined nylon at equivalent thickness. A 280 GSM polar fleece hoodie provides roughly the same warmth as a 500 GSM cotton sweatshirt at less than half the weight. The warmth comes from the brushed pile surface on one or both sides — this creates a layer of still air (one of the best insulators) between the fabric and skin. Polar fleece was invented by Malden Mills in 1979 specifically as a synthetic alternative to wool, and it achieves 80–85% of wool's insulating power at a fraction of the weight and cost.

Q: What's the difference between polar fleece and regular fleece?

All polar fleece is fleece, but not all fleece is polar fleece. 'Fleece' is a general term for any brushed-pile knit fabric. Polar fleece specifically refers to a double-sided brushed polyester fleece with a medium-to-thick pile height (3–8mm) and a denser, more structured knit than generic fleece. It's warmer, more durable, and has better shape retention than lighter fleece types. By contrast, micro fleece is a lighter, thinner variant with a shorter pile (1–3mm) designed for layering. French terry has loops on one side and a flat surface on the other — it's not fleece at all but is often confused with it. Sherpa fleece mimics sheep's wool with a long, curly pile on one side. When someone says 'polar fleece,' they mean the specific medium-weight, double-sided brushed construction that's become the global standard for fleece hoodies and jackets.

Q: Does polar fleece pill?

Untreated polar fleece will pill — it's the single biggest quality complaint with fleece fabric. Pilling occurs when loose fibers on the brushed surface tangle together during wear and washing, forming small balls of fuzz. However, anti-pilling treatment is now standard practice in quality fleece production. Our anti-pill process uses a specialized singeing and shearing treatment that removes loose surface fibers before they can tangle, followed by a polymer coating that binds remaining fibers. The result is fleece that maintains a clean, uniform surface through 30+ wash cycles. We apply anti-pilling treatment at no extra cost on all fleece orders. Without treatment, standard fleece typically shows visible pilling after 5–10 washes — with our treatment, it's rated Grade 4 on the ISO 12945-2 pilling scale after 30 washes.

Q: Is polar fleece waterproof?

No — standard polar fleece is not waterproof. It's highly water-resistant due to the hydrophobic nature of polyester fibers, meaning light rain and snow will bead up on the surface rather than soaking in immediately. But under sustained precipitation or submersion, water will penetrate. Polar fleece can hold up to 1% of its weight in moisture before feeling wet (compared to cotton's 8–10%), so it dries extremely fast even when saturated. For water-resistant fleece garments, we apply a DWR (Durable Water Repellent) finish that causes water to bead and roll off — this provides protection for light rain but is not a substitute for a proper waterproof shell. For fully waterproof fleece jackets, a laminated membrane (like our water-resistant fabric options) would need to be applied as a layer.

Q: Is polar fleece eco-friendly?

Standard polar fleece made from virgin polyester is not eco-friendly — polyester is a petroleum-derived plastic that takes 200+ years to decompose. However, recycled polyester polar fleece (made from post-consumer PET bottles) is a genuinely strong sustainable story: it diverts plastic from landfills, uses 59% less energy to produce than virgin polyester, reduces CO2 emissions by up to 75%, and produces a fabric that's functionally identical to virgin polyester fleece. We offer recycled polar fleece certified by the Global Recycled Standard (GRS) with full chain-of-custody documentation. It costs 8–12% more than virgin polyester fleece but provides a verified sustainability claim that resonates strongly with consumers. For brands making eco-claims, recycled fleece is one of the most credible and easiest-to-explain sustainable material choices available.

The warmest fabric in our catalog relative to its weight — polyester fibers engineered into a dense, brushed-pile structure that traps body heat in microscopic air pockets. From fleece hoodies to cold-weather training jackets, this is the fabric that delivers real warmth without real weight, dries in minutes, and costs a fraction of wool.

10×

Warmer Than Cotton

Fabric Types

Min. Order

30+

Wash Anti-Pill

OEKO-TEX 100Certified Safe

ISO 9001:2015Quality System

Anti-PillGrade 4+ Rated

GRS CertifiedRecycled Options

DHL / FedExExpress Delivery

OVERVIEW

What Is Polar Fleece Fabric?

Polar fleece is a double-sided brushed polyester knit fabric engineered for maximum warmth-to-weight ratio. The construction creates a dense, uniform pile on both sides — thousands of tiny polyester fibers standing upright that trap body heat in microscopic air pockets. The result is a fabric that provides roughly 10× the insulation of cotton at the same weight while weighing a fraction of equivalent wool.

"Polar fleece is the most cost-effective warmth fabric ever invented. A 280 GSM fleece hoodie delivers the same practical warmth as a 500 GSM cotton sweatshirt at less than half the weight, a third of the cost, and it dries in 20 minutes instead of overnight. For any brand selling cold-weather apparel to price-conscious consumers, fleece isn't an option — it's the only fabric that makes the math work."

Our polar fleece range covers standard polar fleece (the versatile workhorse at 200–280 GSM), micro fleece (lightweight 120–180 GSM for layering), heavyweight fleece (300–400 GSM for extreme cold), anti-pill fleece (singeing-treated for 30+ wash cleanliness), recycled polyester fleece (GRS-certified from post-consumer PET bottles), and fleece-cotton blend (polyester face with cotton backing for a natural-against-skin feel).

Every roll is tested for anti-pilling performance (Grade 4+ after 30 washes, ISO 12945-2), thermal resistance (R-value per GSM measured per ASTM D1518), moisture absorption (<1% of fabric weight), colorfastness to washing (Grade 4+, ISO 105-C06), shrinkage control (<2% after washing), and air permeability (balanced for warmth without overheating).

80%

Of Wool's Warmth

Close-up of polar fleece fabric showing dense brushed pile texture on both sides with uniform fiber height

Quality Lab — Sialkot

FABRIC TYPES

All Polar Fleece Fabrics We Offer

From ultra-light layering to extreme-cold heavyweights — each fleece weight targets a specific temperature range and use case.

Standard

200–280 GSM

Micro Fleece

120–180 GSM

Heavyweight

300–400 GSM

Anti-Pill

Singeing Treated

Recycled

GRS Certified

Fleece-Cotton

Natural Backing

HEAD TO HEAD

Polar Fleece vs. French Terry vs. Wool

How polar fleece performs against the two other common cold-weather fabrics across the properties that matter.

Polar Fleece

French Terry

Wool

Warmth/Weight

Quick Dry

Durability

Breathability

Cost Efficiency

Shape Hold

Scores shown are for standard polar fleece at 280 GSM. French terry scores: Warmth/Weight 45, Quick Dry 50, Durability 70, Breathability 72, Cost Efficiency 75, Shape Hold 65. Wool scores: Warmth/Weight 98, Quick Dry 35, Durability 82, Breathability 85, Cost Efficiency 20, Shape Hold 70. All scores based on standardized lab testing at equivalent GSM per ASTM D1518 (thermal resistance), ISO 11092 (evaporative resistance), and ISO 12945-2 (pilling).

PERFORMANCE FEATURES

Why Polar Fleece Dominates Cold-Weather Apparel

Engineered properties that make fleece the world's most popular synthetic insulation — at any price point.

Exceptional Warmth

Dense brushed-pile structure traps body heat in thousands of microscopic air pockets — delivers 80–85% of wool's insulation at a fraction of the weight and cost.

Ultra Quick-Dry

Polyester absorbs less than 1% of its weight in moisture — saturated fleece dries in 15–20 minutes compared to 8+ hours for cotton sweatshirts.

Lightweight

280 GSM polar fleece provides the same practical warmth as 500+ GSM cotton — the garment feels light and unrestrictive while delivering serious insulation.

Anti-Pill Treated

Singeing and shearing treatment removes loose surface fibers before they can tangle — maintains clean, uniform appearance through 30+ wash cycles.

Breathable Insulation

Unlike waterproof membranes that trap moisture, fleece allows perspiration vapor to escape while retaining heat — prevents the cold-sweat-cling cycle.

Water-Resistant

Hydrophobic polyester fibers naturally repel light rain and snow — water beads on the surface rather than soaking in. Optional DWR coating for enhanced protection.

Cost Efficient

Polyester fleece is 60–80% cheaper per meter than equivalent wool — makes warm, quality garments accessible at mainstream price points.

Excellent Dye Affinity

Polyester takes disperse dyes exceptionally well — colors are vivid, permanent, and resistant to fading from UV exposure and repeated washing.

APPLICATIONS

What It's Used For

Polar fleece powers the highest-volume cold-weather categories — from fashion hoodies to workwear jackets.

Fleece Hoodies

Zip Jackets

Training Jackets

Pullovers

Winter Sportswear

Work Wear

Fleece Vests

Warm-Up Gear

Loungewear

Outdoor Layers

Pet Blankets

Beanies & Hats

Gloves & Scarves

Camping Gear

Promo Merch

COMPARISON

Polar Fleece Types — Head to Head

Choosing the right fleece weight and construction determines warmth level, garment weight, and target season.

Property	Standard Polar Fleece	Micro Fleece	Heavyweight Fleece
Weight Range	200–280 GSM Most Popular	120–180 GSM	300–400 GSM Warmest
Warmth Level	High — 5–15°C range	Moderate — 10–20°C range (as layer)	Very high — -5 to 10°C range Warmest
Pile Height	3–6mm — medium texture	1–3mm — fine, smooth Smoothest	6–10mm — deep, plush texture
Weight Perception	Medium — substantial but not heavy	Very light — barely there Lightest	Heavy — feels like a real jacket
Sublimation	Fully compatible Yes	Fully compatible	Fully compatible (thicker pile may soften detail slightly)
Anti-Pill	Grade 4+ after 30 washes	Grade 4+ (shorter pile = naturally less pilling) Best	Grade 3–4 (longer pile = more pilling risk)
Breathability	Good — balanced for most conditions Best Balance	Excellent — most breathable fleece	Moderate — thick pile traps more air and moisture
Cost Per Meter	Baseline — best value	10–15% below standard	20–35% above standard
Best For	Hoodies, zip jackets, pullovers, work wear	Base layers, lightweight liners, fashion layers	Extreme-cold jackets, heavy hoodies, winter uniforms
Season	Fall, mild winter, spring evenings Most Versatile	Spring, summer evenings, indoor layering	Winter only — too warm for mild conditions

Pro tip: The most successful fleece programs use a layered approach: micro fleece as a base/mid-layer (sold separately or as part of a 3-piece set), standard 240–260 GSM polar fleece for the hero hoodie/jacket product, and heavyweight 320–360 GSM for a premium "arctic" line. All three accept full sublimation from coordinated dye lots. See our 280 GSM, 300 GSM, 340 GSM, and 360 GSM fabric pages for weight-specific details.

PROS & CONS

Honest Assessment

Advantages

Exceptional warmth-to-weight ratio — 10× warmer than cotton at same GSM, 80% of wool's warmth at 1/3 the cost
Ultra quick-dry — absorbs <1% moisture, dries in 15–20 minutes, ideal for active use in cold/wet conditions
Lightweight and non-restrictive — serious warmth without the bulk and stiffness of heavy cotton or wool
Fully sublimation-compatible — 100% polyester accepts permanent, vibrant all-over prints
Excellent cost efficiency — 60–80% cheaper per meter than wool, enabling competitive retail pricing
Naturally water-resistant — light rain and snow bead up on the surface without soaking through
Machine washable and easy care — no special detergents, no dry cleaning, no ironing needed
Excellent colorfastness — polyester holds vibrant colors through 50+ washes without fading
Recycled options available — GRS-certified recycled polyester fleece for verified sustainability claims
Hypoallergenic — unlike wool, fleece contains no lanolin and doesn't cause skin irritation

Disadvantages

Prone to pilling without treatment — loose fibers tangle during wear and washing, creating surface fuzz balls
Highly flammable — polyester melts and drips when exposed to flame, cannot be treated to be flame-retardant effectively
Not windproof — air passes through the knit structure, so fleece alone is insufficient in windy conditions
Static electricity buildup — fleece generates and holds static charge, attracting lint, hair, and dust
Not biodegradable — polyester takes 200+ years to decompose, creating environmental concern at end of life
Can retain odor — polyester holds body odor more than natural fibers, especially with heavy use
Less breathable than wool — doesn't regulate temperature as dynamically, can cause overheating during high activity
Lower perceived value than wool — despite equal warmth, fleece is associated with "budget" in some markets

Our mitigation: Anti-pill treatment is applied at no extra cost on all fleece — Grade 4+ after 30 washes guaranteed. For wind protection, we offer bonded fleece constructions with a thin windproof membrane laminated to the fleece back. For static, an anti-static finish is available on request. For odor, anti-microbial treatments (silver-ion based) reduce bacteria buildup by 90%+. For the environmental concern, our recycled polyester fleece (GRS-certified) diverts plastic from landfills and uses 59% less energy — read our recycled fabrics guide for details. For perceived value, heavyweight 320+ GSM fleece with premium finishing (flat-lock seams, YKK zippers) positions at a totally different price tier than standard fleece.

DECORATION OPTIONS

Best Methods for Polar Fleece

Fleece's 100% polyester composition makes it exceptionally decoration-friendly — but the brushed pile surface requires technique adjustments.

All-over sublimation print on polar fleece hoodie showing vibrant full-wrap custom design on brushed surface

Best Result

Sublimation (All-Over Print)

The #1 choice for polar fleece — 100% polyester accepts sublimation dye perfectly. The brushed pile creates a unique visual effect: colors appear slightly softer and more muted compared to smooth fabrics, giving sublimation prints a premium, matte-finish quality that many brands prefer over the glossy look on flat polyester. Fully permanent, fade-proof, and wash-proof.

Full ColorPermanentAll-OverMatte Finish

Bold Graphics

Screen Printing

Works well for bold, simple designs on fleece — sponsor logos, block text, and large chest/back prints. The brushed pile requires a thicker ink deposit (plastisol recommended over water-based) to bridge the textured surface. Fine detail and small text can be inconsistent on deep-pile fleece. Best for high-volume, low-complexity logo placement.

Plastisol InkCost Effective1–8 ColorsBold Only

Premium Look

Embroidery

Best on heavyweight fleece (300+ GSM) where the dense structure provides adequate stabilization. Standard and micro fleece can be too plush for clean embroidery — stitches may sink into the pile. We use a water-soluble topping film during embroidery that prevents stitches from disappearing into the fleece, then dissolves in the first wash. Premium result on heavy fleece.

Heavyweight3D EffectTopping FilmPremium

CUSTOMIZATION

Make It Yours

Polar fleece offers extensive customization — from weight and pile depth to bonded constructions and sustainable certifications.

Weight Selection

120–400 GSM — micro fleece for layering, standard for hoodies, heavyweight for extreme cold.

Brushed Sides

Single-sided (smooth face, brushed back) or double-sided (brushed both sides) — affects warmth and print surface.

Bonded Options

Laminate a windproof membrane or waterproof layer to the fleece back for all-weather protection.

Pile Depth

Short pile (1–3mm, smoother), medium pile (3–6mm, standard), or deep pile (6–10mm, plush luxury feel).

Sustainable Cert

GRS-certified recycled polyester from post-consumer PET bottles — full chain-of-custody documentation provided.

Functional Finishes

Anti-pill, anti-static, anti-microbial (silver-ion), DWR water repellent, or UV protection treatments.

HOW IT WORKS

Ordering Process

From first inquiry to finished fleece garments — a streamlined 5-step process.

Inquiry

Day 0

Samples

3–5 Days

Approval

1–2 Days

Production

15–21 Days

Delivery

4–7 Days

Total turnaround: 23–35 days from inquiry to doorstep. Bonded fleece and recycled options may add 3–5 days. Rush orders available in 15–20 days.

ORDER DETAILS

MOQ, Capacity & Lead Time

500 pcs

Minimum Order Quantity

Fabric-only: 150 meters

30K pcs/mo

Manufacturing Capacity

Scalable to 50K+ on demand

15–21 days

Production Lead Time

Rush orders: 10–12 days

FAQ

Frequently Asked Questions

Is polar fleece actually warm?

Yes — polar fleece is extraordinarily warm for its weight. The construction creates a dense network of polyester fibers that trap body heat in tiny air pockets, providing roughly 10× the insulation of cotton at the same weight and 2× the warmth of unlined nylon at equivalent thickness. A 280 GSM polar fleece hoodie provides roughly the same warmth as a 500 GSM cotton sweatshirt at less than half the weight. The warmth comes from the brushed pile surface on one or both sides — this creates a layer of still air (one of the best insulators in nature) between the fabric and skin. Polar fleece was invented by Malden Mills in 1979 specifically as a synthetic alternative to wool, and it achieves 80–85% of wool's insulating power at a fraction of the weight and cost.

What's the difference between polar fleece and regular fleece?

All polar fleece is fleece, but not all fleece is polar fleece. "Fleece" is a general term for any brushed-pile knit fabric — it includes polar fleece, micro fleece, sherpa fleece, and even some brushed French terry. Polar fleece specifically refers to a double-sided brushed polyester fleece with a medium-to-thick pile height (3–8mm) and a denser, more structured knit than generic fleece. It's warmer, more durable, and has better shape retention than lighter fleece types. Micro fleece is a lighter variant with shorter pile (1–3mm) designed for layering. French terry has loops on one side and a flat surface on the other — it's structurally different from fleece entirely. When someone says "polar fleece," they mean the specific medium-weight, double-sided brushed construction that's become the global standard for fleece hoodie fabrics and jackets.

Does polar fleece pill?

Untreated polar fleece will pill — it's the single biggest quality complaint with fleece fabric. Pilling occurs when loose fibers on the brushed surface tangle together during wear and washing, forming small balls of fuzz. However, anti-pilling treatment is now standard practice in quality fleece production. Our anti-pill process uses a specialized singeing treatment that burns off loose surface fibers before they can tangle, followed by precision shearing to create a uniform pile height. The result is fleece that maintains a clean, uniform surface through 30+ wash cycles. We apply anti-pill treatment at no extra cost on all fleece orders. Without treatment, standard fleece typically shows visible pilling after 5–10 washes — with our treatment, it's rated Grade 4 on the ISO 12945-2 pilling scale after 30 washes. For the absolute best anti-pill performance, micro fleece (shorter pile = fewer loose fibers) is the safest choice.

Is polar fleece waterproof?

No — standard polar fleece is not waterproof. It's highly water-resistant due to the hydrophobic nature of polyester fibers, meaning light rain and snow will bead up on the surface rather than soaking in immediately. But under sustained precipitation or submersion, water will penetrate. Polar fleece can hold up to 1% of its weight in moisture before feeling wet (compared to cotton's 8–10%), so it dries extremely fast even when saturated. For water-resistant fleece garments, we apply a DWR (Durable Water Repellent) finish that causes water to bead and roll off — this provides protection for light rain but is not a substitute for a proper waterproof shell. For fully waterproof waterproof fabric constructions, a laminated membrane can be bonded to the fleece back, creating a 3-layer waterproof-breathable fabric.

Is polar fleece eco-friendly?

Standard polar fleece made from virgin polyester is not eco-friendly — polyester is a petroleum-derived plastic that takes 200+ years to decompose. However, recycled polyester polar fleece (made from post-consumer PET bottles) is a genuinely strong sustainable story: it diverts plastic from landfills, uses 59% less energy to produce than virgin polyester, reduces CO2 emissions by up to 75%, and produces a fabric that's functionally identical to virgin polyester fleece. We offer recycled polar fleece certified by the Global Recycled Standard (GRS) with full chain-of-custody documentation. It costs 8–12% more than virgin polyester fleece but provides a verified sustainability claim that resonates strongly with consumers. For brands making eco-claims, recycled fleece is one of the most credible and easiest-to-explain sustainable material choices available. Read more in our sustainable sportswear fabrics guide.

Can polar fleece be sublimated?

Yes — polar fleece is fully sublimation-compatible because it's 100% polyester. The brushed pile surface creates a slightly different sublimation result compared to smooth fabrics: colors appear softer and more muted, almost like a natural fabric print rather than the hyper-vibrant look on flat polyester. Many brands actually prefer this — it gives sublimation prints on fleece a premium, matte quality that feels less "synthetic." The only consideration is pile depth: micro fleece (short pile) produces the sharpest print detail, while deep-pile heavyweight fleece may soften fine details slightly. For all-over print hoodies and jackets, standard 240–280 GSM polar fleece hits the sweet spot of print quality and warmth. See our sublimation vs. screen printing comparison for method selection guidance.

How should polar fleece garments be washed?

Polar fleece is one of the easiest fabrics to care for, but a few rules maximize its lifespan: wash in cold or warm water (30–40°C max) — hot water can damage the anti-pill treatment and cause excessive shrinkage. Turn garments inside out before washing to protect the brushed surface from abrasion. Do NOT use fabric softeners — they coat the polyester fibers with silicone residues that reduce the fabric's moisture-wicking and quick-dry properties. Avoid bleach entirely — it degrades polyester fibers and causes discoloration. Tumble dry on low heat or air dry — high heat can melt or distort polyester fibers and will definitely reduce anti-pill effectiveness. Do not iron — polyester melts at approximately 250°C and even low-heat ironing can create shiny patches on the pile. For best results, wash fleece separately from garments with zippers, Velcro, or rough surfaces that can abrade the pile. We provide pre-written care labels in 12 languages — see our sportswear care guide for detailed instructions.

What GSM is best for polar fleece hoodies?

The ideal GSM depends on the target season and market position. 200–220 GSM: lightweight fleece hoodies for spring/fall, fashion-forward slim-fit designs, and layering pieces — comfortable in 15–20°C weather. 240–280 GSM: the industry standard for fleece hoodies — provides substantial warmth for 5–15°C weather, good structure for kangaroo pockets and hoods, and the best balance of warmth, weight, and cost. This is where 80%+ of the market sits. 300–360 GSM: heavyweight premium hoodies for winter — serious warmth for 0–10°C, thick and luxurious hand feel, commands premium pricing. 380–400+ GSM: extreme-cold, almost jacket-weight fleece — for arctic conditions, outdoor work wear, and statement pieces. For most brands launching a fleece hoodie line, we recommend 260 GSM as the starting point. See our 280 GSM, 300 GSM, 320 GSM, 340 GSM, 350 GSM, 360 GSM, 380 GSM, 400 GSM, and 400+ GSM pages for weight-specific details.

Can I get fabric samples before ordering?

Absolutely. We provide free A4-size fabric swatches (up to 3 options — we recommend including micro fleece, standard 260 GSM, and heavyweight 340 GSM so you can feel the warmth and weight differences) shipped via DHL/FedEx at no charge. We can also include small cut panels that have been sublimated with a sample design so you can evaluate both the base fleece hand feel and the print result on the brushed pile surface together.

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