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Base Layer Tops
Midweight Base Layer Half-Zip Top - Women's
REI Co-opThe women's REI Co-op Midweight Base Layer Half-Zip Top offers warmth in the cold with long sleeves and easy venting thanks to a front zipper.
Midweight Crew Long Underwear Top - Kids'
REI Co-opMake your kiddo's base layer the warm, breathable, kids' REI Co-op Midweight Crew long underwear top and they'll play happily outside all day. It's great on its own for inside play, too.
Midweight Crew Long Underwear Top - Toddlers'
REI Co-opMake your tot's base layer the warm, breathable, toddlers' REI Co-op Midweight Crew long underwear top and they'll play happily outside all day. It's great on its own for inside play, too.
Midweight Long-Sleeve Base Layer - Men's
REI Co-opWarm and wicking to keep you comfortable on the slopes, the men's REI Co-op Midweight Long-Sleeve Base Layer has a smooth face to easy layering and a brushed back for warmth against the cold.
Midweight Long-Sleeve Base Layer Top - Women's
REI Co-opWherever you're out in the cold, you'll love the streamlined warmth, moisture-wicking comfort and easy layering of the women's REI Co-op Midweight long-sleeve base layer top.
Midweight X Base Layer Crew Top - Men's
BurtonBegin your layering system with a flexible base that moves with you. The men's Burton Midweight X Base Layer Crew top also breathes with your body heat and helps control odors.
Midweight X Base Layer Crew Top - Women's
BurtonBegin your layering system with a flexible base that moves with you. The women's Burton Midweight X Base Layer Crew top also breathes with your body heat and helps control odors.
Midweight X Base Layer Long Neck Hoodie - Women's
BurtonPull up the hood, deploy the face mask and ride into the weather. The women's Burton Midweight X Base Layer Long Neck hoodie keeps you comfy with a built-in neck warmer and breathable fabric.
Midweight X Base Layer Long-Neck Hoodie - Men's
BurtonPull up the hood, deploy the face mask and ride into the weather. The men's Burton Midweight X base layer long-neck hoodie keeps you comfy with a built-in neck warmer and breathable fabric.
Nangha Base Layer Top - Men's
Picture Organic ClothingMake layering easy with the chafe-free seams and practical thumbholes of the men's Picture Organic Clothing Nangha base layer top. It's also moisture-wicking and treated to help control odors.
Performance Light Crew Shirt - Men's
OdloBeat the heat on summer adventures in the Odlo Performance Light Crew shirt. Organic body mapping and integrated ventilation zones provide ideal breathability when you're working up a sweat.
Quest Long-Sleeve Crew Base Layer Top - Men's
SaxxMade from lightweight pin-dot mesh, this men's Saxx Quest long-sleeve crew base layer top is a versatile option for whatever your day has in store. Test it out on a quick hike or a misty morning run.
Rho Lightweight Crew Neck Long-Sleeve Base Layer Top - Women's
Arc'teryxDelivering moisture management and breathable warmth, the women's Arc'teryx Rho Lightweight Crew Neck long-sleeve base layer top keeps you comfortable with a trim fit for hustling in the mountains.
Rho Lightweight Hoodie Base Layer Top - Women's
Arc'teryxDesigned for lower output activities in cool temperatures, the women's Arc'teryx Rho Lightweight Hoodie base layer top is moisture-wicking, quick-drying, breathable and seriously soft.