Improved with a new fit and colors, the women's Smartwool Merino 250 Base Layer Crew top helps you look and feel better with perfect midweight warmth and dry comfort for your active best.
Layering is smart when you know the mercury will dip and rise on your hike. The Smartwool Merino base layer tee works well undercover on cool mornings or as a standalone piece in warmer temps.
The 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.
Wherever 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.
Begin 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.
Pull 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.
Delivering 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.
Designed 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.
Comfort starts with your base layer. Made for wicking and warmth on low-output days, the women's Arc'teryx Rho Lightweight zip-neck base layer top feels supersoft, moves with you and layers easily.
Skiing, backpacking or climbing, the Arc'teryx Rho Wool Long-Sleeve Crew women's base layer top is extremely versatile. It's fitted for easy layering, while stretch and articulation free up movement.
Knit with a Nordic-inspired floral design, the women's Kari Traa Rose half-zip base layer top is made from insulating merino wool for next-to-skin comfort, natural odor-resistance and breathability.
Some wear it as a light and warm base layer under their gear. Some wear it as a smoothing base for daily wear. Either way, the women's REI Co-op Silk V-neck shirt is a great foundation.
With low-profile seams to minimize bulk and maximize comfort, the women's Summit Pro 120 Crew base layer top is an adventure-ready, lightweight base layer made for cold-weather exploration.
Designed with a technical wool blend to wick moisture and stretch with your every move, the women's Kari Traa Sval Long-Sleeve base layer top keeps you warm and dry even when working up a sweat.