Smartwool Merino 250 Classic Thermal Base Layer Crew – Kids' Size:XS these are the boxer briefs

these are the boxer briefs we recommend when guys ask what actually holds up in Southern heat

One size fits most adults

Recycled nylon webbing dries fast and holds its shape

Versatile fleece jacket with hardface stretch fleece for mobility and high efficiency grid fleece for lightweight warmth

Low-profile construction keeps you close to the ground for plyometrics

Smartwool Merino 250 Classic Thermal Base Layer Crew – Kids' Size:XS these are the boxer briefsBuilt for cold weather adventures and active kids who run hot and cold at the same time, the Merino 250 is our go to midweight base layer for young athletes. 250g merino wool regulates temperature naturally and fights odor without chemical treatments, so it stays fresh across multiple wears. It works equally well under a puffy on a winter hike or as a standalone layer on chilly morning starts. 250g merino wool weight hits the sweet spot between warmth