The Marmot AirExchange UPF Crew is your go-to performance baselayer for hiking, climbing, trail running, and backpacking. Lightweight, breathable AirExchange fabric dries quickly and wicks moisture to keep you cool and comfortable in the heat. Built with UPF 50 sun protection, abrasion-resistant flatlock seams, and dropped shoulders, it ensures mobility and chafe-free comfort under packs and harnesses. A hidden side-zip pocket secures essentials like lip balm, keys, or energy gels—perfect for long days on the trail or alpine climbs.

Features:

Lightweight, breathable AirExchange UPF fabric
UPF 50 sun protection for maximum coverage
Quick-drying, sweat-wicking performance layer
Flat-felled seams for durability and comfort
Hidden zip-secure pocket for small essentials

Stay cool, dry, and protected with the Marmot AirExchange UPF Crew. Designed for outdoor adventures from hiking and climbing to running, biking, and travel, it combines sun protection, breathability, and lightweight comfort. The perfect long-sleeve trail shirt for summer and beyond.