We Skied in 20 Different Base Layers—These Are the Top 13 That’ll Keep You Warm, on and off the Slopes

Of all the base layers I’ve tried this season, I keep coming back to my Kari Traa Smekker set Both the long-sleeve top ($110) and bottom ($110) are made from 100 percent merino wool that’s lightweight and breathable, but so warm. This means it’s also antimicrobial, so even when I’m sweating coming off the mountain, it doesn’t smell (I think I’ve washed my set only three times all season?). Layer on the adorable pattern and chic piping, and it’s become my go-to set to trot around in at après long after I’ve gotten off the slopes.

Editor rating: 10/10

Knix launched its new line of merino base layers a few weeks ago, and I’m more than impressed. The long sleeve top ($98) and matching leggings ($98) are made from a buttery merino wool blend called SculptWool, which smooths and stretches against your silhouette. When I tell you these things are soft… slip them on under your snow pants or even a pair of jeans and you’ll forget they’re even there.

Editor rating: 10/10

Obermeyer is beloved in the winter sports community for its high-quality gear that holds up over time. The Discover 1/4 Zip Up ($89) and Tight ($79) have quickly become my go-to for layering on warmer days when I don’t need as much insulation. Both pieces are made in a breezy polyester brushed in a peachy fleece that feels really dreamy when it’s on. The top is also feature-friendly, complete with thumbholes and a chin warmer (!) when you need to get out of the elements.

Editor rating: 9/10 — If you run cold, it might be a tad lightweight for resort skiing.

I’ll be honest—I thought this bodysuit was going to be all fashion, no function. I was wrong—this suit is so warm and just makes layering super easy. The inside is lined in a cloud-like fleece that’s soft and smooth, never itchy or uncomfortable. My personal fave is the high mock neck which zips up all the way, keeping me warm and snug even when the wind is whipping. For $40, adding it to your cart is a no-brainer.

Editor rating: 9/10 — TBH, getting it off when you have to pee is a bit of a hassle. But damn, it looks good.

I’m an Outdoor Voices evangelist and will sing its praises from the rooftops. Unsurprisingly, I’m quite fond of my FrostKnit Pullover ($98) and 7/8 Leggings ($118), which are both made from a stretchy, sculpting lycra brushed in a cozy lining. It has everything you want in a good set: ample pockets, room for movement, even reflective piping. My only hang-up is it is a little bit stiff (the material is thick, which isn’t the most comfortable for layering underneath heavy ski gear). But for winter jogs and cold-weather hikes, it’s a solid bet.

Editor rating: 8/10 — The material is kinda stiff, but it won my heart for warmth.

Surprise, surprise—Ibex landed itself on the top of this list. The brand is a goldmine for merino wool goodness, like the Ibex Woolies 2 Zip ($145) and Bottoms ($135). Zac says even when he sweats (which is a lot), he’s kept warm and dry. And again, since it’s wool, stink doesn’t cling to it like it might other fabrics.

Editor rating: 10/10

Next on the list is the Burton Midweight X Base Layer Hoodie ($90) and Pants ($70), both which come in a stretchy, forgiving material that’s warm but breathable. Unlike the Dakine, it’s not bulky or fleecy. But it’s not as thin as others either—it’s truly about as mid-weight as you can get. “The built-in gaiter is pretty nice,” Zac says. “I like it for storm days when I want to have my face covered.” Noted.

Editor rating: 10/10

“Unbelievably soft, I love them,” says Zac. “I wear them around the house, but can also wear them under my snow pants… Please don’t steal them.” I haven’t stole them yet but I have tried them on and can confirm—they’re really freakin’ soft. And they’re made from recycled fabrics, making them an eco-friendly option, too. Tl;dr—there’s not much to dislike about this plush combo.

Editor rating: 9/10 — They are heavy, so if you run hot you might get a little toasty.

If you’re on a budget for end of season base layers, check out this thermal from Jack Wolfskin. “It’s $24—that’s, like, nothing,” says Zac. “It’s a little thin as a base layer by itself, but under a sweatshirt or as a sun shirt, it’s great. I wish there were matching pants.”

Editor rating: 8/10 — A bit thin but really affordable and versatile for all seasons. Wish there were pants…

If you run hot, or just want a thin layer to throw on underneath your snow suit, give Duluth’s Buck Naked system a look. It trades wool or cotton for a stretchy nylon-spandex blend that feels, well, Buck Naked. “It’s not thick enough to be on its own, but it’s a great first piece of the system,” Zac says. “Underneath another layer, it’s pretty comfortable.”

Editor rating: 8/10 — You’ll definitely want to pair it with another layer, but the light material is perfect for sweaty treks.

Zac and I both love our Bombas, thanks to that signature hex. Whether we’re skiing, hiking, or walking around, that little band of extra support goes along way. Mind you, we have very different feet—mine are flat and narrow, his are high-arched and wide. That’s how you know Bombas are the real deal—they feel good no matter what kind of hooves you have.

Editor rating: 10/10

I also love my Darn Tough socks, which are designed to absorb shock while you ski, step, and skate. They’re mid-weight, so they’re heavy enough to stay warm and plush but not so heavy you can’t feel your feet. And compared to other ski socks, they’re $27, which is pretty affordable.

Editor rating: 10/10

If there’s one compression sock Zac and I fight over, it’s our Comrads. These things are so comfortable, designed to support circulation and keep blood pumping when you need it most. For outdoor activities, we love the merino wool ones which wick sweat and keep stinky feet at bay.

Editor rating: 9/10 — They’re not as thick as the others, but they’re soft and ultra-compressive, which feels amazing whether you’re skiing, hiking, flying, or laying on the couch.