The 8 Best Base Layers for Hunting of 2026

You can spend a great deal more on a base layer set and get very little extra for a November sit. This CL convallaria top and bottom is the least expensive men's set we recommend, and it does the one job that matters: it holds heat. The fleece lining is soft against the skin, the outside is smooth enough to slide under jeans or wool pants, and the four-way stretch means you can climb into a stand without the legs fighting you.

What we appreciate most is how little it asks of you. There is no special wash, no careful handling, and the low price means you can buy two and rotate them, which matters more for staying warm across a season than any single expensive piece. It is also the set we point to when someone wants a complete system at once instead of assembling merino pieces over a couple of years.

Sizing is where it slips. The set runs small and the tops run short, so a hunter who normally takes a large is often happier in an XL, and anyone over six feet should check the chart before ordering rather than reaching for their usual size. The fleece is thin, which is exactly why it layers so easily; under bibs and a wool shirt it handles real cold, and worn on its own around camp it will not do much.

Single-digit mornings are their own category, and this is the leg layer we pull out for them. Under Armour's 4.0 is the heaviest tier in the Base series, and the difference shows up about twenty minutes into a sit, when a midweight starts letting cold settle in and this one does not.

It is built for the sitting part of hunting rather than the walking part. Cold-weather work and ice fishing come up again and again in what hunters do with these, and the compression fit is the reason: there is no loose fabric to go numb against your legs, and nothing bunches under bibs or waders. The smooth face slides under outer layers instead of grabbing at them.

The waistband is the one detail we minded. It is noticeably tighter than the rest of the leg, and after a long day it leaves a mark, so if you are between sizes the waist is where you will feel the difference. Sizing runs small across the board; treat the chart as a starting point and lean up rather than down.

Then there is the price, the highest here for a single piece, and the compression feel is a preference rather than a universal good. If you want a layer you can forget you are wearing, merino is the more forgiving choice. When the forecast is genuinely brutal and you plan to sit, though, this is the pair that keeps your legs in the game.

If the MERIWOOL pant is the benchmark, this is the value version of the same idea. It is 100% merino, it costs meaningfully less, and it holds its own on warmth and softness: smooth enough to feel like a second skin, warm without overheating on a climb, and breathable in a way synthetic long johns are not.

The fit is friendly. It runs true to size with enough length for taller hunters, and it is light enough to wear under jeans around camp without looking like you are in long johns at all. The waistband sits flat and stays put under snow pants, which is not a given at this price.

Durability is the compromise. Wool knit this thin can develop small holes at the knee and seat after a few months of regular wear, and washing it carelessly gets you there faster. Follow the care instructions exactly, cool water and air drying, and it will last a season of weekend hunts. If you are in a base layer daily from September through December, spend more; if you want merino for a handful of trips, this is the pair.

Women's base layers are often an afterthought, either a men's set in a smaller size or something sold as loungewear and not much else. This Cuddl Duds two-piece is the exception, and it is the warmest women's option in this guide by a clear margin. Warmth is the thing it does best, and it does it without the puffy, inflated feeling of heavier thermal sets.

What we like beyond the heat is the finish. The inside is brushed fleece and the outside is smooth and almost silky, so it slides under jeans, snow pants, or wool outerwear instead of dragging on them. It stays put at the waist and ankle rather than riding up, and the fabric is opaque enough that you are not thinking about what shows through when you peel off a layer at the truck.

Sizing is the catch. This set runs large, so size down unless you deliberately want an easy, loungey fit, and the sleeves run long enough that taller women will be comfortable. It is also soft enough to sleep in, which sounds like a small thing until you are in a cold camp and want one set that works for the bunk and the stand.

The top and the bottom of this set fit like they came from two different products. The top runs small through the shoulders while the leggings run roomy, so buying one size for both is a gamble. Account for that and it is a lot of warmth for very little money, and it is the set we point to when budget is the deciding factor.

The warmth is real but moderate: this is a layer for the 30s and 40s, or under a shell when it is colder, rather than a stand-alone deep-winter piece. The fleece inside is the pleasant kind of soft rather than the fuzzy kind that pills, and it layers under jeans or snow pants without adding bulk. The pants stay up at the waist instead of rolling, which is the failure that ruins most cheap sets.

Buy it for what it is: an inexpensive way to add a warm layer for a woman who hunts a few times a season, or a set to keep in the truck for cold mornings. Some hunters will want something heavier for a late-season sit, and the split sizing makes it awkward as a gift unless you know both halves of the fit.

This set is rated for 23 to 50 degrees, and that is roughly the range most late hunting seasons actually deliver. It is a heavyweight double-brushed knit, thick enough to feel like thin sweatpants and soft enough on the inside that pulling it on in a cold truck is genuinely pleasant. It holds heat without the clammy feeling cheaper synthetics develop once you stop moving.

The cut is the good part. It is roomy through the seat and thighs without being baggy, it stays in place under outer layers instead of twisting, and the legs run long, which taller hunters will notice immediately. It also survives a normal wash and dry without shrinking, so the fit you get out of the bag is the fit you keep.

Where it gives ground is bulk and range. This is a heavy layer, and if you are climbing hard or hunting mild weather you will overheat in it quickly. It is at its best on a stand, in a blind, or on a slow still-hunt in properly cold weather, and it is worth having a lighter set for the early season rather than trying to make one layer do everything.

Sizing runs slightly big, which suits a cut meant to be roomy rather than painted on, so order true to size rather than down. At the midrange price it is the best heavyweight set here, and the one we hand to a hunter who feels the cold and does not want to think about layers all day.

This is not a thermal layer, and it does not pretend to be. HeatGear is Under Armour's warm-weather fabric, and the reason it belongs in a hunting guide is September: early archery seasons, scouting trips, and any hunt where the walk in is hotter than the sit.

As a next-to-skin layer for warm weather it does the job. The compression fit keeps everything in place with no ride-up, the fabric is thin enough to vanish under light pants, and it moves sweat rather than soaking it up. The waistband stays comfortable rather than rolling, which is the thing that turns a cheap pair of leggings into a fidget.

Durability is the weak spot. Seams around the knees and at the waist are where these give out, and the knit is thin enough that a snag on brush is a real risk. Treat them as a warm-weather layer rather than a workhorse, wash them cold, and they will hold up for the few months a year you need them.

For what it does, the price is easy to justify, and it is a better use of money than a heavyweight layer you only wear twice. What it will not do is keep you warm once the temperature drops; that is what the merino and the heavyweights here are for, and owning both is the honest answer for anyone who hunts from September through December.