Herren Merino 260 ZoneKnit™ Langarm Thermoshirt

Second day of ski touring in single digits and I never once felt clammy even after the climb—the ZoneKnit panels really do let heat escape where you sweat most. The wool is thick and soft, not itchy at all, and it's held its shape after two washes.

Wore this on a cold, windy hike and stayed dry despite working up a sweat—the ZoneKnit panels really do let you breathe without freezing. The merino wool feels soft against skin, not scratchy like other heavy base layers I've tried. It's become my go-to for chilly morning trail runs.

The merino wool is impressively thick but not itchy at all, and the ZoneKnit panels kept me from overheating during a brisk hike. It's quickly become my go-to for cold weather outdoor activities.