The merino wool is noticeably softer than any synthetic base layer I've owned, and it breathes well when I'm moving around the house. Fit is snug but not restrictive, and it's already my go-to under jeans on cold days.

Wore these on a chilly morning hike and the merino kept me warm without any bulk under my shell. The waistband sits flat and doesn't dig in when I'm bending over to tie boots.

Finally, a base layer that doesn't itch or bunch up under my shell pants. The merino wool keeps me warm on chilly morning runs without overheating by noon. Waistband sits flat, no digging in.