Warm materials can make a difference during brutal winter months, making fleece is a great option and insulator to keep you warm, cozy and protected when the temperatures go low. Experts love it, too; they say it's a great layering material for retaining body heat.
Unlike its big brother the heavy coat, fleece jackets are more lightweight in structure and provide a warm alternative while running, heading for an outdoor adventure or simply staying cozy in the office, without the extra sweat.
I [Espinal] opt for jackets with fuzzy textures and fitted silhouettes, especially when I want to keep extra insulated. However, certain fabric compositions will leverage that insulation factor more than others.
So, whether you're heading for après-ski, a holiday party or the mountains, experts reveal how to choose the right fleece jacket and what components to look out for. Our editors also share their top picks and which ones have surpassed wintery conditions.
Which is the warmest fleece? | Expert-approved fleece jackets | Editor-approved fleece jackets | How we chose | Meet the experts
Which is the warmest fleece?
According to textile expert and president of Filium Doug Lynch, the warmest fleece depends on its weight, fabric type and construction.
"Heavyweight fleece is generally considered the best for warmth. Consumers should aim for a minimum weight of 300 GSM when choosing fleece, as this provides optimal warmth," shares Lynch.
In textile jargon, GSM stands for (grams per square meter) the metric measurement of the weight of a fabric. Also, if you want maximum insulation, founder of CrashGal Couture Leah Wise recommends choosing fleece jackets labeled as Polartec or Thermal Pro, as these are considered heavyweight fleece.
Best fleece jackets, according to experts
Lock insulation: Columbia Women's Benton Springs Full Zip Fleece Jacket
- Soft and warm
- Multiple colors available
- Ideal to size up
Size: XS-XXL | Colors: 19 | Material: 100% polyester | GSM weight: 250
If you're looking for something lightweight for your morning runs, this jacket will cover it. It's crafted with a lightweight fleece material and strings at the hem to adjust the fit. Lynch recommends this jacket as an affordable option and it's offered in multiple color choices.
Choose your hue: Panadila Sherpa Fleece Pullover
- Not too thick
- Can be worn indoors
- Not ideal for colder days
Size: S-XL | Colors: 22 | Material: Polyester blend | GSM weight: Not specified
Here's another budget-friendly option recommended by Wise for its trendy design and cozy aesthetic. While some shoppers shared this fleece pullover is warm, others argue that is suited for the indoors better. It comes in multiple colors and features zipper pockets to keep items secured.
Practical first: Athleta Girl So Toasty Jacket
- Roomy interior
- Feels warm
- No plus sizes
Size: XS-XXL | Colors: 3 | Material: 75% recycled polyester, 25% lycra | GSM weight: Not specified
For chillier days, opt for this fleece jacket recommended by Wise. This jacket is warm despite its light construction and features a chest pocket, which is practical for keeping credit cards or cash. Its roomy interior allows you to wear addiontal shirts underneath without the extra bulk.
Light heat:The North Face Women's Glacier Fleece 1/2 Snap
- Stylish
- Cozy and warm
- Not many color options
Size: XS-XXL | Colors: 3 | Material: 100% polyester | GSM weight: 160
Both Wise and Lynch recommend this brand for fleece jackets. While it comes in limited colors, this piece is designed for light runs, short walks or easy hikes. Despite the lighter weight, this jacket provides enough warmth when being active. It's a great option to dress up or down, or for a layering system.
Packable companion:Patagonia Women's Better Sweater 1/4 Fleece
- Lightweight material
- Very warm
- Can feel fitted
Size: XXS-XXL | Colors: 10 | Material: 100% recycled polyester | GSM weight: Not specified
Whether you're heading to work, hiking or need something casual, this fleece jacket has you covered on cold days. "Patagonia fleece jackets and vests are approved by finance bros everywhere and for good reason. Their sweater knit aesthetic makes them ultra stylish and the 100% recycled polyester ensures they’re ultra warm and Fair Trade Certified," says Wise.
Best fleece jackets, according to editors
Cozy staple: Columbia Women's Fire Side Quarter Zip Sherpa Fleece
- Feels very soft
- Warm
- Can run small
Size: XS-XXL | Colors: 5 | Material: 100% polyester | GSM weight: Not specified
Associate editor Shannon Garlin says she received this jacket for a ski trip last season. "I have gotten a lot of use out of it, even off the slopes. The fleece fabric is soft and plush, which I found to be more comfortable than your typical fleece jacket. This style also has a half-zip to give it a bit more oomph. I found myself wearing it all winter last year and already broke it out for this season," says Garlin.
Daily go-to: Cotopaxi Teca Fleece Pullover
- Really warm
- Fun color combinations
- Fabric can feel scratchy
Size: XXS-XL | Colors: 5 | Material: 100% recycled polyester fleece | GSM weight: 255
Associate editor Sierra Hoeger says her mom gifted her this sweater, which has become an everyday go-to during winter. "It was easy to slip on and pair with jeans, sweats, or virtually anything else when running errands, at work or traveling. The fleece keeps you warm without overheating, and the angle of the pockets makes sure that the phone, wallet, keys, and other small items don't fall out," she says.
Rightfully warm: Marmot Women’s ‘94 E.C.O. Recycled Fleece
- Keeps you dry
- Very warm fabric
- Can run small
Size: XS-XL | Colors: 3 | Material: 100% recycled polyester | GSM weight: 250
Production coordinator Camryn Privette is a fan of Marmot for its warmth level. "I just added this fleece to my collection and I've reached for it all week. I own the yellow and love how vibrant the colors are. It's a great in-between-temps pick since it's warm without being too insulating. Plus, the vintage/retro design is super trendy right now and so fun. 10/10 rec!" shares Privette.
Insulation perfection: Stio Women’s Glide Power Stretch Half Zip
- Very warm
- Fitted but not tight
- Can make you sweat after a run
Size: XS-XL | Colors: 5 | Material: Polartec® Power Stretch® fleece | GSM weight: 227
This fleece jacket is very warm and keeps me insulated throughout my workouts and errand runs. I [Espinal] usually wear it with another light shirt underneath, but the material is so cozy that adding a coat is not necessary. I've worn it in 40-degree weather and feel comfortable when walking and commuting around. Also, it absorbs moisture quickly while keeping the warmth within.
Flee from the cold: Fjall Raven Expedition Fleece Hoodie W
- Very warm
- Ideal for the outdoors
- High price point
Size: XXS-XL | Colors: 4 | Material: 75% polyester (recycled), 18% polyester, 7% elastane | GSM weight: Not specified
"This jacket is definitely a big splurge, but the little details make it so comfy. For starters, it zips up to your chin to keep you warm in the wind (without a scarf) and prevent the hood from blowing off," says associate editor Lauren Witonsky.
It features thumb-hole cuffs to prevent cold air from entering the jacket while keeping it fitted to the body. "I also like the zippered pockets in case I wear it on its own and want to keep my phone/wallet/keys secure. Finally, the fleece lining is super soft, lightweight and moisture-wicking for winter activities (like skiing or hiking) where you might work up a sweat," adds Witonsky.
Frequently asked questions
According to Lynch, fleece jackets are considered a mid-layer because it's "meant to provide insulation and retain body heat. Fleece excels here due to its lightweight, breathable, and insulating properties. It traps air to keep you warm while allowing moisture from the base layer to escape."
Also, you want to consider the fit of your jacket. Wise says to consider how you plan to wear your fleece during cold weather. "A slimmer fit is better for layering versus a looser cut for the outer most layer."
"Choosing a good fleece jacket depends on your intended use, climate and personal preferences," says Lynch. Below there's a guide to help you decide which one to buy:
- For casual wear: Lynch suggests, "prioritizing comfort and style; look for softer, lightweight fleece (100 GSM+)."
- For outdoor activities: "Choose fleece (200GSM+) based on your insulation needs, breathability, and layering compatibility," says Lynch.
- For cold weather: "Opt for heavyweight or windproof fleece for added warmth (300 GSM+)."
- For high-intensity activities: Lynch recommends opting for lightweight or breathable fleece to prevent overheating (100-200 GSM).
There are many ways to style a fleece jacket, according to Wise. "Keep it cozy and casual by pairing your fleece with a pair of joggers or sweats and UGGs. Or you can go for a more athleisure look with leggings, sneakers and a baseball cap."
If you want a more bold and retro style, Wise suggests "picking a fun color or patterned fleece and pairing it with wide leg jeans or trousers."
For a more dressed-up version, Lynch recommends opting for Chelsea boots and tailored chinos or dark wash jeans.
How we chose
The items selected were based on experts’ recommendations and editors’ most-loved pieces. We focused on brands that offer insulation and functionality while considering customers’ reviews, size availability and fabric components.
Meet the experts
- Leah Wise is the founder of CrashGal Couture, a brand focused on expressive clothing for modern working women.
- Doug Lynch is a textile expert and president of Filium, a company developing high-performance, breathable clothing that does not sacrifice environmental integrity for functionality.
