The Best Fleece Midlayers for Backpacking in 2025

A decent midlayer fleece jacket should be a staple in every hiker’s backpack. The best hiking fleeces provide a much-needed boost in lightweight warmth on chilly days, can be worn at camp and while hiking, and won’t crush your soul when you look at the price tag. Synthetic polyester fleece feels soft against the skin and is significantly more affordable than down or synthetic insulated jackets.

Best Fleece Midlayers for Backpacking: Quick Navigation

Patagonia R1 Pullover | Best Patagonia Fleece
REI Trailmade Jacket | Best Budget Fleece
Melanzana Micro Grid | Fan Favorite
Arc’teryx Kyanite | Best Town to Trail Fleece
LightHeart Gear Alpha Direct Hoodie | Best Ultralight Fleece
Rab Alpha Flash | Best Fully Featured Alpha Fleece

Best Fleece Midlayers FAQs:
Fleece vs. Puffy for Thru-Hiking: Which is Better?
Features to Look for in the Best Thru-Hiking Fleece Jackets
Fleece Technologies

Best Fleece Midlayers for Backpacking FAQs

Hiking Fleece vs. Puffy for Thru-Hiking: Which is Better?

Many hikers do NOT carry a fleece and a puffy at the same time. You should take both if you anticipate cold/unpredictable weather or if you tend to get chilled easily — otherwise, pick one or the other in the interest of conserving weight, funds, and pack space.

Puffies, especially those insulated with down, have a higher warmth-to-weight ratio than fleeces. Because they’re thicker, they also offer more wind protection. Go with a puffy if warmth is your top priority.

READ NEXT –

• The Best Down Jackets for Backpacking
• The Best Synthetic Jackets for Backpacking
  

However, almost all backpacking puffies feature thin, delicate face fabrics that can wear thin or snag if you’re not careful. Rain or sweat can ruin a down jacket. And while synthetic insulated jackets are less vulnerable to moisture, they’re often too warm for comfort while hiking and lose vital loft over time due to repeated compression.

In contrast, fleeces are durable. They’re not prone to snagging, and in the event of a rip, they’re easy to sew up with a needle and thread. You can wash your fleece in the laundry with the rest of your clothes, unlike a down jacket, which needs special care.

They’re also thin enough to be breathable and offer a full range of motion, making them better suited to heavy activity. It’s no big deal if your fleece midlayer gets wet because it’s a hydrophobic material that absorbs less than 1 percent of its weight in water and dries quickly. Also, they’re significantly cheaper than puffies.

In short: go with fleece if you want a durable layer that you can wear while hiking or if you need to keep a close eye on your budget.

What are some features to look for in the best fleece midlayers for backpacking?

Weight: Under 14 ounces.

Zipper: Full-zip jackets are well-ventilated and easy to take on and off, but the zipper also adds weight and creates a cold spot down the middle. Pullovers are a pain to get on and off and can’t be unzipped to dump heat, but the lack of zippers minimizes heat loss. If you can’t decide, you can split the difference by going for a half-zip.

Hood: Adds to the weight and price of the fleece, but the increase is usually minimal, and you get a lot of added warmth in exchange. If you opt for a hood, make sure it has a shock cord adjustment so you can keep it in place and seal out cold drafts. Many of the fleeces on this list have both hooded and hoodless versions.

Pockets: Zippered handwarmer pockets are the most functional, but kangaroo pockets (found on many pullover-style fleeces) work well too. Having pockets mostly matters if you plan to wear your fleece around camp since, if you’re wearing it on the trail, you can store things in your backpack pockets instead.

Fit: A slim (not tight) fit is best as it will minimize cold spots and dead airspace. Reducing bulk with a trim fit will also save weight. You’ll probably only have a base layer underneath this, so there’s not much justification for a loose or baggy fleece beyond personal preference.

Micro-grid pattern: Many of the best hiking fleeces feature “micro grid” fleece. The grid pattern is ideal for temperature and moisture management as it improves wicking and air circulation. Micro-grid fleece is a great feature for anyone who plans to hike in their fleece frequently.

Fleece Weights and Technologies

Fleece weight denotes the thickness and warmth (and, yes, weight) of fleece. Lightweight, aka 100-weight, and midweight, aka 200-weight, fleeces are most popular for backpacking and other technical pursuits. Heavyweight (300-weight) fleece is too bulky and heavy to be practical for all but front-country use. Most hikers will want a midweight fleece (especially those who run cold), but lightweight fleeces are appropriate for ultralighters and hikers in hot climates who want a slight boost in warmth.

Many jackets on this list feature some type of Polartec fleece. Polartec dominates the fleece market and is well known for its quality and innovative textiles.

The Best Fleece Midlayers for Backpacking in 2025

Patagonia R1 Pullover Men’s | Women’s (Best Patagonia Fleece Jacket)

MSRP: $149
Weight: 10.8 oz men’s | 8.6 oz. women’s
Materials: 100 percent recycled polyester fleece
Size range: XS – XXXL men’s | XS – XXL women’s

The Patagonia R1 has been a thru-hiker staple for many years. At almost 12 ounces for a men’s medium, it’s not the lightest midlayer on this list, but the grid pattern on the inside of the fabric excels at moisture wicking and breathability.

It features an athletic fit that’s perfect for layering and a scuba hood that will make you look and feel like a ninja. In addition to the pullover featured here, you can get the R1 as a full zip for more versatility (women’s version here).

Like most Patagonia products, you can feel good that you’re purchasing not just a quality product, but something backed by a company that values ethical and sustainable manufacturing: the fleece is made with 93 percent recycled fabric and sewn in a Fair Trade certified facility.

If you want a somewhat lighter, less technical Patty fleece at a lower price point, check out the hilariously named Patagonia Micro D instead.

Materials and Features

Polartec is the gold standard for fleece fabrics. The R1 features Polartec Power Grid, a cutting-edge grid material that is lighter, more compressible, and more breathable than traditional fleece. The updated fleece now integrates Patagonia’s proprietary Capilene base layer fabric in the underarm panels, reducing the pullover’s weight and bulk while boosting breathability. The fabric is stretchy, which enhances mobility and makes it easy to push the sleeves up.

The R1 Pullover now has just one zippered chest pocket, eliminating the old hand warmer pockets in favor of weight savings (presumably). This is honestly kind of a bummer, but hey, those ounces don’t shave themselves.

The comfort/functionality of this jacket speaks for itself, but it also features several small, thoughtful details that set it apart from the competition.

The cuffs are elasticized to help keep them in place and seal out drafts, enhancing warmth and comfort. The fabric has Patty’s proprietary “HeiQ” odor control to help offset fleece’s natural tendency to retain unpleasant smells. Patagonia also sews this garment with offset seams that sit off the shoulder to reduce uncomfortable rubbing beneath your pack straps.

Pros: Breathable; moisture-wicking; recycled materials and Fair Trade sewing; odor control; offset seams
Cons: Expensive; heavy; only one pocket (on the chest); not especially warm for the weight

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REI Trailmade Fleece Jacket Men’s | Women’s (Best Budget Fleece)

MSRP: $60
Weight: 12.7 oz men’s | 10.9 oz women’s
Materials: 100% recycled polyester
Size range: S – XXXL men’s | XS – XXXL women’s

Realistically, if you want a truly budget-friendly fleece jacket, you’ll find the best deals at thrift stores or your friendly neighborhood Costco. But there is something to be said for a sure bet: a quality piece from a reputable brand with published specs that you know isn’t going to start pilling like crazy or fall apart on you after a few washes. The REI Trailmade Fleece is that piece. 

Materials and Features

At $60 full price, this is not the cheapest fleece in the world, but it is the cheapest fleece on the list while keeping the weight reasonable at just under 13 ounces for the men’s version. And you’ll get a soft, recycled fleece, a full-length zipper, two zippable hand pockets, and two drop-in interior pocket into the bargain. (Not to mention some hella cute colorways.)

The Trailmade has a comfy, relaxed fit, which makes it perfect for adding layers underneath but slightly awkward for adding layers on top. Lycra bindings on the cuff, collar, and hem give the jacket a little more stretch and structure in these areas.

Pros: Affordable; warm; recycled materials; plenty of pockets; decent color choices
Cons: On the heavy side; casual fit can make layering on top a bit annoying; non-gridded fleece won’t breathe well

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Melanzana Micro Grid Hoodie V2 | Fan Favorite

MSRP: $86
Weight: 12.1 oz (men’s large) | 9.3 oz (women’s medium)
Materials: Polartec Micro Grid (100 percent recycled polyester)
Size range: S – XXL men’s | XS – XL women’s

Leadville, CO-based Melanzana’s Micro Grid hoodie is a cult classic in the outdoor community. Those lucky enough to own a coveted “Melly” tend to sport it proudly on the trail.

This fleece is warm, versatile, comfy, and affordable. But it’s only sold in-person at their store in Leadville, making Mellies very difficult for most of us to come by. Still, we’re just putting it out there: it’s a great performance fleece that’s worth keeping in the back of your mind in case an opportunity to visit the Melanzana store ever presents itself.

Materials and Features

Melanzana’s iconic hoodie is a pullover-style fleece featuring a kangaroo pocket, raglan sleeves, and an adjustable scuba hood that provides excellent coverage. It’s not the lightest fleece on this list, but it’s very warm—almost too warm to hike in. The design of this fleece has stayed the same since last year’s update of this list.

V2 is made with 100 percent recycled post-consumer waste. Same as before, the V2’s recycled Polartec fabric is soft, fast-drying, and highly effective at trapping heat. There are no zipper-induced cold spots, and the bold grid pattern enhances breathability.

We like that the kangaroo pocket has small openings that minimize gapping and keep your belongings from falling out. The scuba hood is also a delight: it’s an unusual feature for a pullover, but it provides excellent coverage when pulled up and cinched, and when the hood is down, it functions like a cowl neck to keep your neck warm.

Pros: Iconic style; made in USA; no zippers = thermal efficiency; kangaroo pocket; affordable; lots of color options; cozy scuba hood; comfortable; very warm
Cons: Limited in-store availability, no online availability; not the lightest; pullover design reduces ventilation/ease of use; can be too warm to hike in; filling kangaroo pocket causes sag

READ NEXT – Melanzana Micro Grid Review

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Arc’teryx Kyanite Men’s | Women’s (Best Town to Trail Fleece)

MSRP: $200
Weight: 15 oz (men’s) | 12.9 oz (women’s)
Materials: Polartec Power Stretch Pro
Size range: XS – XXL men’s | XXS – XXL women’s

We love the way this jacket fits. It has great range of motion and is insanely comfortable. Although expensive, it can pull double duty as a hiking fleece and a casual around-town jacket. The trim, athletic fit is flattering, thermally efficient, and ideal for layering.

If you like the look of the Kyanite but wish it were lighter/cheaper, check out the hoodless Kyanite jacket (women’s here).

Materials and Features

This jacket is stretchy. The fleece itself is Polartec Power Stretch Pro, a soft and four-way-stretchy polyester-elastane blend with a nylon face material. The hem, cuffs, and hood are all bound with stretch fabric, as well, and the underarm panels are gusseted to maximize comfort and range of motion. That’s just the level of detail we would expect from an Arc’teryx design.

The Kyanite also features massive, zippered handwarmer pockets that provide plenty of storage. Unlike most jackets, these pockets sit mostly above the level of a backpack hip belt, so they’ll still work even when you’re hiking. The balaclava/scuba-style hood won’t droop in your eyes and provides great protection when fully zipped.

At $200, the Kyanite is by far the most expensive fleece on this list. Arc’teryx is an expensive brand; you get a lot of quality for your money, but still — budget-conscious hikers will struggle to justify the cost of this fleece in a market that’s already floodeed with more affordable options.

Pros: Warm; stretchy; flattering fit; snug scuba hood; articulated design; pockets still work with pack hip belt
Cons: Expensive; heavy; slim cut may not be comfortable for everyone; non-gridded fleece won’t breathe well

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LightHeart Gear Alpha Direct Hoodie Men’s | Women’s (Best Ultralight Fleece)

MSRP: $130
Weight: 5.2 oz men’s | 4.2 oz women’s
Materials: Polartec Alpha Direct 90 (100% polyester)
Size range: S – XXXL men’s | XS – XXXL women’s

Several other cottage companies, like Senchi Designs and Timmermade, also work with Alpha Direct and have fleeces that come in even lighter than this one. Those brands are also worth checking out, but LightHeart is probably your best bet for having fleeces actually in stock when you check their website. (Senchi uses a drop system to sell all their products now while Timmermade has implemented a lottery due to the large imabalnce between demand and their manufacturing capacity). We also respect the hell out of LightHeart’s wacky colorways. All three of these brands design and sew their garments in the US.

Materials and Features

Polartec Alpha Direct is an innovative fleece material that is highly breathable and extraordinarily lightweight. It functions best as part of a layering system with an ultralight wind shell, as it’s a bit too breathable to be warm enough on its own in most conditions. Don’t forget, therefore, to factor in the added cost and weight of the wind shell if you’re considering going with an Alpha Direct fleece. Still, if you want a layering system that’s warm yet breathable, versatile, and exceptionally lightweight, it doesn’t get much better than this.

The fleece is somewhat reminiscent of Melanzana with its cowl-neck hood and kangaroo pocket.

Pros: Ultralight; breathable; functional across a wide range of conditions (when paired with wind shell); fun colors; has thumb loops
Cons: Not that functional as a standalone midlayer; not the lightest or most affordable Alpha Direct hoodie on the market

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Rab Alpha Flash Men’s | Women’s (Best Fully Featured Alpha Fleece)

MSRP: $145
Weight: 9.6 oz (men’s) | 7 oz (women’s)
Materials: Polartec Alpha polyester fleece, Thermic brushed back single jersey
Size range: S – XXL men’s | XS – XL women’s

The Rab Alpha Flash is a great option if you’re looking for something fancy, technical, and generous in the warmth department. It’s a fuzzier, loftier fleece than many on our list, even though it’s also among the lightest at under 10 ounces.

This is the best option on our list for someone seeking the UL/breathability benefits of Polartec Alpha but with more of the features of a traditional fleece, including stretch panels, a pocket, and a full-length.

This is probably the best option on our list for anyone seeking a fleece that can take the place of their puffy. Particularly when paired with an ultralight wind shell, it’s warm and light enough to compete with your average insulated jacket, with all the breathability, durability, and moisture management advantages of fleece to boot. It’s also less expensive than most puffies, though it’s on the pricy side for a fleece.

Materials and Features

Polartec Alpha is a grid fleece that was originally designed for use by special forces. It’s a top performer in breathability, compressibility, and thermal efficiency. It delivers consistent, lightweight warmth while wicking sweat for maximum next-to-skin comfort.

The Alpha Flash also incorporates Rab’s proprietary Thermic brushed back single jersey (a thin, stretchy microfleece), in the sides, underarms, and chest pocket. These panels are lightweight and highly breathable, so they help to keep the weight down and maximize ventilation.

Because Polartec Alpha is so breathable, you may need to pair it with a windproof shell (such as your rain jacket) in breezy conditions.

The jacket features flat lock seams, which are smooth and low-profile (so no uncomfortable rubbing). It has a zippered chest pocket and an adjustable hem, but no handwarmer pockets and no hooded option. This is on the expensive side for a fleece, but it’s a good value considering its performance and features.

Pros: Breathable; packable; lightweight; excellent warmth-to-weight ratio; flexible fleece side panels
Cons: Expensive; no hooded option; no handwarmer pockets; best when paired with a wind shell

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More of the Best Gear of 2025

• The Best Backpacks for Thru-Hiking
• The Best Sleeping Bags for Thru-Hiking
• The Best Tents for Thru-Hiking

Why should you trust us?

Because we’re so incredibly intelligent, of course! Attractive, too. (Not to mention extremely humble).

But if that isn’t enough to impress you, there’s also the fact that everyone who contributed to this article is an experienced thru-hiker with thousands of on-trail miles under their belt. We’re gear nerds who love testing our equipment on trails long and short, and we’ve tested dozens of hiking fleeces in pursuit of warmer backcountry days.

Moreover, we do our best to stay plugged into the trail community’s gear preferences (we are definitely those obnoxious people on trail who always want to know what everyone else is packing). That means our picks for the best hiking fleeces aren’t just our opinions: they’re based on years of feedback from the thru-hiking community.

Rachel Shoemaker and Alexander “GPS” Brown contributed to this list.

Featured image: Graphic design by Chris Helm (@chris.helm).