Women's Smartwool Classic Thermal Merino Base Layer Crew spo-default For help with the perfect

For help with the perfect fit

7 oz (277g)

So light it feels like nothing

PWRRUN Frame supports your foot upon landing and its curved shape propels you to a snappy takeoff

This long-distance speed shoe is equipped with our Altra EGO™ PRO midsole foam for cushion in each step and our Active Stance Rocker to provide a more efficient toe off

Women's Smartwool Classic Thermal Merino Base Layer Crew spo-default For help with the perfectDescription: Meet the new and improved Women's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder panels and its flatlock seam construction helps prevent chafing and increases your comfort level. Add one of our best base layers for cold weather to your winter wardrobe and experience the