Women's Merino Blend 260 ZoneKnit™ Seamless Long Sleeve Crewe Thermal Top

I wore this on a chilly morning run and the mesh panels under the arms let me ditch my jacket by mile two. The cut is snug but never rides up, and the seamless knit means zero chafing even after a full hour. It's become my go-to layer for anything from hiking to just lounging at home.

The mesh panels under the arms are a game-changer—I stayed dry and comfortable during an hour of chilly morning trail running. The merino blend feels soft against the skin without any itchiness, and the seamless build means zero chafing. Absolutely worth it for cold-weather layering.

I was skeptical about seamless construction being any different, but this top’s flat, smooth seams under my backpack straps have been a game-changer for all-day comfort. The merino blend also breathes well even after a sweaty hike.