Wore this under a shell on a windy ridge and never overheated once. The low-friction outside really does let it slide under layers without bunching, and the inside stays soft against a t-shirt.
Michael K.★★★★★
The wool blend actually breathes on a long climb and still feels warm when I stop. The lofted inside is softer against my skin than I expected, and the relaxed fit leaves room for a base layer without bunching.
Avery X.★★★★★
Wore this under a shell on a cold, windy hike and stayed warm without feeling clammy. The wool blend actually wicks, and the smooth outside slides under layers instead of bunching up.