Assos Ultraz Winter LS Skin Layer P1 Men

The warmest base layer for winter’s coldest and most extreme conditions, refined with an ultra-high collar, added odorControl, and a high-stretch wool blend for body-mapped insulation.

Merino wool and a high-stretch, highly insulating synthetic blend provide the most insulation of any Assos skin layer, with an updated neck-warmer collar construction extending coverage. The ultra-soft textile doesn’t itch like wool, and its high elasticity also means it won’t lose its shape when stretched. Instead, it moves with your body, maintaining a close-fitting, low-volume fit to retain warmth and wick moisture—both critical for comfort in deep winter.