Men's Classic Thermal Merino Base Layer 1/4 Zip Size:Medium 0 splits the chassis into

0 splits the chassis into two pieces for a dual purpose: one piece runs under the foot for enhanced support and forward propulsion

Medium: 8 in (base diameter)

And Natural Materials

Merino-lined

Hidden RFID security pocket sized for wallet/passport inside laptop sleeve

Men's Classic Thermal Merino Base Layer 1/4 Zip Size:Medium 0 splits the chassis intoWe've updated the fit of our Men's Merino 250 Base Layer 1 4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature regulated as you enjoy high intensity skiing, hiking, running, and