Women's Intraknit Thermal Merino Base Layer Pattern Crew wsmartloftskirt Insulation is lined in Merino

Insulation is lined in Merino for comfort

These high-performing women's cold weather run socks will warm up any icy run

Maximum support and comfort make the Beast GTS 24 a runner and walker favorite

NITROFOAM™: Advanced nitrogen-infused foam designed to provide superior responsiveness and cushioning in a lightweight package

Altra's Original FootShape™ Fit gives your feet room to spread out and move naturally and a mid-cut design gives your ankles added support so you can stay on the trail longer and keep discovering

Women's Intraknit Thermal Merino Base Layer Pattern Crew wsmartloftskirt Insulation is lined in MerinoWonderfully patterned and even more comfortable, the Smartwool Women's Intraknit Thermal Merino Base Layer Pattern Crew uses the latest and greatest technology to help keep you warm as you wander and get active. This Smartwool base layer is 3D mapped for a near custom fit and freedom of movement, while ribbed elbows provide extra flex room. New technology allows us to seamlessly knit mesh ventilation in gender specific zones designed to help keep your