The warmest foundational layer for winter’s coldest, most extreme conditions, refined with an ultra-high collar, additional odorControl, and a highly elastic wool blend for body-mapping insulation.

Features

• Merino wool and a highly elastic, highly insulating synthetic blend provide the most insulation of any of our skin layers, with an updated neck-warmer collar construction that extends the protection
• The ultrasoft textile doesn’t irritate like wool, and its high elasticity means it also doesn’t lose its shape when it stretches
• Instead, it moves with your body, maintaining a low-volume, next-to-skin fit to trap warmth and expel moisture – both of which are critical for comfort in deep winter

Size Chart