Patagonia Capilene 3 Crew - Long-Sleeve - Women's

The Patagonia Women's Capilene 3 Crew Long-Sleeve T-Shirt's heavyweight insulation adds crucial warmth to your layering system for brutally cold days in the mountains.

Burton Expedition 1/4-Zip Top - Women's

Burton made the Women’s Expedition ¼-Zip Top to insulate you against the winter chill, so slip this on underneath your jacket and head to the lift.

Burton Midweight V-Neck Top - Women's

Layer the Burton Women' Midweight V-Neck Top under your shell when the weather gets downright nasty.

Mountain Hardwear Butter Zippity Shirt - Long-Sleeve - Women's

Light as a feather and smooth as butter, the Mountain Hardwear Women's Butter Zippity wicks moisture and babies your skin while you cover ground on a hiking trip.

Burton Player Shirt - Long-Sleeve - Women's

Functional, fashionable, and completely comfortable, wear the Burton Women's Player Long-Sleeve Shirt under your snowboard jacket when the temps on the mountain drop.

Burton Luxury Midweight One-Piece - Women's

Forward-thinking women of the nineteenth century made the union suit a popular alternative to uncomfortable corsets. You can thank these pioneers when you’re wrapped neck to ankle in the cozy comfort of the Burton Luxury Midweight One-Piece Base layer for Women.

Vans TSS Top - Women's

Vans made the Women’s TSS Top with a Ciba antimicrobial agent to help keep stink to a minimum.

SmartWool Sport NTS Crew Top - Long-Sleeve - Women's

The SmartWool Women’s Sport NTS Crew Long-Sleeve Top regulates your temperature naturally by breathing, insulating, and allowing perspiration to evaporate before it even beads up on your skin.

Marmot Midweight Zip-Neck Shirt - Long-Sleeve - Women's

You’d like a super-soft baselayer that won’t smell like a locker-room after your day on the slopes. Welcome to the Marmot Women’s Midweight Zip-Neck Shirt.

Patagonia Capilene 3 Zip-Neck Shirt - Long-Sleeve - Women's

Stay cool while cross country skiing in the Patagonia Women's Capilene 3 Zip-Neck, and then stay warm while waiting for your friends to catch up.

Icebreaker BodyFit 260 Olympia Zip-Top - Long-Sleeve - Women's

Kiss energy-draining clamminess goodbye when you pull on the Icebreaker Women’s Bodyfit260 Olympia Long-Sleeve Top.

GoLite Drimove BL-2 Top - Long-Sleeve - Women's

Whatever outdoor activity gets your heart racing, it’ll be more pleasant if you wear the GoLite Women’s Drimove BL-2 Long-Sleeve Top.

Under Armour Subzero Long-Sleeve Shirt - Women's

The Under Armour Women's Subzero Mock Long Sleeve Shirt gives you killer base layer warmth and wicks sweat, so you can be comfortable whether you're skinning up or skiing down.

GoLite DriMove BL-3 Half-Zip Shirt - Long-Sleeve - Women's

When you head north or the cold air dives south, put the GoLite Women’s DriMove BL-3 Half-Zip Shirt on underneath your ski jacket.

Patagonia Merino 3 Zip-Neck Top - Long-Sleeve - Women's

Head out for a morning run in the midweight Patagonia Women's Wool 3 Zip-Neck base layer.

Icebreaker GT 260 Rapid Full-Zip Jacket - Women's

Wear the Icebreaker Women’s GT260 Rapid Full-Zip Jacket as a top layer on October hikes, and slide the midweight Rapid under your shell for winter ski-slope action.

GoLite DriMove BL-1 Shirt - Long-Sleeve - Women's

The bald man in front of the map says the cold is on its way, so put on the GoLite Women’s DriMove BL-1 Shirt before you head up the canyon to catch first chair.

Icebreaker GT 260 Quantum Full-Zip Hooded Top - Long-Sleeve - Women's

The Icebreaker Women’s GT260 Quantum Hooded Top acts as a warm hoody on October backpacking treks, and the curved front seams and semi-fitted cut make the Quantum a smooth mid-layer option for ski trips come winter.

Icebreaker BodyFit 260 Crew - Long-Sleeve - Women's

We can see why the Women's BodyFit260 Crew is one of Icebreaker's best selling base layers every year.

GoLite Drimove BL-2 1/4 Zip Top - Long-Sleeve - Women's

Before you put on your ski jacket and hop on the tram, put on the GoLite Women’s Drimove BL-2 ¼-Zip Top for an extra layer against the brutal summit wind.

Icebreaker GT260 Kicker Half-Zip Top - Long-Sleeve - Women's

The Icebreaker Women’s GT260 Kicker Half-Zip Top boasts features that go above and beyond your typical midweight layer. So yes, this top is allowed to look a bit smug when you pull it out of your closet.

Patagonia Merino 2 Crew - Long-Sleeve - Women's

Moisture doesn’t like to be managed, but the Patagonia Women’s Merino 2 Crew’s wicking, quick-drying combination of natural merino wool and recycled polyester is a little bit of a control freak.

Under Armour Base 2.0 Quarter-Zip Shirt - Long-Sleeve - Women's

Don’t let winter interrupt your training schedule when you can add the Under Armour Women’s Base 2.0 Long-Sleeve Quarter-Zip Shirt to your arsenal.

Cloudveil Run Don't Walk Zip-Neck Light Top - Women's

Any winter morning outdoors should be started with a strong cup of coffee and the Cloudveil Women’s Run Don’t Walk Zip-Neck Light Top.

Patagonia Merino 3 Hooded Shirt - Long-Sleeve - Women's

The Patagonia Women’s Merino 3 Hooded Shirt warms your torso and head as you ski and breathes like a champ on sweaty fall and spring backpacking trips.

Kombi Bamboo 4-Way Stretch Two Tone 1/4 Zip-Neck Top - Women's

The Kombi Bamboo Four-Way Stretch Two-Tone ¼-Zip Neck combines cutting-edge looks with leading-edge fabric technology in a sweet base layer top for women.

Isis Pointelle Zip-Neck Turtle Top - Long-Sleeve - Women's

An Evaporator finish on the Isis Women's Pointelle Zip-Neck Turtle Top makes sure this mid-layer wicks moisture away from your body lightening-fast.

Sugoi Carbon Shirt - Long-Sleeve - Women's

Burton Player Flannel - Long-Sleeve - Women's

Burton made the Women’s Player Flannel Shirt with its high-performance, breathable Dryride Ultrawick baselayer fabric so it dries quickly and insulates like your best long johns.

Ibex Zepher Sport Top - Women's

Send your mangy synthetic layers packing when you pull on the Ibex Women’s Zepher Sport Midweight Long Underwear Top. Thanks to pure New Zealand merino wool, you’ll stay dry, comfortable, and funk-free in the backcountry.

The North Face XTC Midweight 1/4-Zip Long Underwear Top - Women's

Wear The North Face Women’s XTC Midweight ¼-Zip Long Underwear Top on chilly fall backpacking trips and under your insulated ski jacket when the thermometer is at an insulting low.

SmartWool Midweight Zip Top - Women's

Wear the SmartWool Women's Midweight Zip-T long-sleeve shirt for stop-and-go aerobic activities or as a warm base layer.

DC Aneto 1/4 Zip Top - Women's

The silky-soft DC Women's Aneto 1/4 Zip Top keeps you dry and sweat-free under your snowboard jacket.

Under Armour Basemap Crew Top - Women's

Before you head into the cold arctic air this winter, throw on the Under Armour Women’s Basemap Crew Top. Whether you’re maching down the ski slope or sprinting up the trail, the Basemap keeps you well insulated and ventilated.

Under Armour Base 2.0 Crew Shirt - Long-Sleeve - Women's

The relaxed-fit Under Armour Women's Base 2.0 Long-Sleeve Crew T-Shirt functions as a functional midweight base layer to give you comfort through a wide range of cooler temperatures.

DC Pelly Shirt - Long-Sleeve - Women's

When your hands get cold, stick your opposable digits through the DC Women's Pelly Long-Sleeve Shirt's cuff holes, and give that bar-star manther who offered to buy you a drink a double-thumbs-up.

I/O Bio Merino Contact Pilot Suit - Women's

Don’t spend money on different base layers when the I/O Bio Merino Women’s Contact Pilot Suit is all you need.

Roxy Shaker Long Underwear Top - Women's

Roxy made the Women's Shaker Long Sleeve Top so your adorable snowboarding jacket can have an equally delightful layer under it.

SmartWool NTS Midweight Crew Top - Women's

The SmartWool Women’s NTS Midweight Crew Long Underwear Top slips under your snowsports layers to keep you far warmer than polyester does.

SmartWool NTS Midweight Zip Top - Women's

The luxuriously warm SmartWool Women’s NTS Midweight Zip T Long Underwear Top layers over a tank, under a ski jacket, or wherever you like.