Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip Black Size:S Powerful and flexible knitted compression

Powerful and flexible knitted compression support to protect and stabilise the lower leg to reduce muscle damage and shin splints

Brim stiffener is made with NetPlus® 100% recycled fishing nets

Flatlock seam construction designed to help increase comfort and minimize chafing    Fully functional fly

A Longer Liner: Stretch boxer-brief liner

Odor-resistant

Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip Black Size:S Powerful and flexible knitted compressionSW016370001 We'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