Women's Smartwool Classic Thermal Merino Base Layer 1/4 Zip - SW002821-010 digital gift card - Bite valve keeps liquids

- Bite valve keeps liquids from escaping

Micro-structured titanium dioxide is infused into the antibacterial Balega Silver running sock yarn

Push off with confidence knowing an aerodynamic silhouette and synthetic sole are propelling you forward stride after stride

Sweat wicking

Flask with Fire & Ice™

Women's Smartwool Classic Thermal Merino Base Layer 1/4 Zip - SW002821-010 digital gift card - Bite valve keeps liquidsWe've updated the fit of our Women's Classic Thermal Merino Base Layer 1 4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and one of our best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help prevent chafing as well as keep you comfortable and temperature regulated as you enjoy high intensity skiing,