ARC Merino Long Sleeve Base Layer

Wore this on a chilly morning hike and it kept me comfortable the whole time without getting clammy underneath. The merino blend does exactly what it claims for temperature regulation.

The fabric is noticeably finer and softer than other merino layers I've owned, and that Biella weave has held its shape through multiple wears without washing. It’s been great at regulating my temperature on chilly morning runs and then sitting in a cold office afterward.

Took this on a damp 40-degree hike yesterday and the fabric kept me perfectly dry under my shell—the temperature regulation is no joke. The merino blend feels noticeably smoother against the skin than my old synthetic layers, and it’s still my first choice once the sun goes down.