Men's Classic All-Season Merino Base Layer CrewSpring skiing or summer camping? The year round Men's Classic All Season Merino Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped lightweight Merino around a nylon core for added durability, while still keeping the comfort of ultra soft, responsibly sourced Merino next to skin. We added smooth flatlock seams to help minimize chafing and offset shoulder and side seams to lie smoothly beneath pack straps. No matter

and lighter-weight breathability where you need it

Our rolled

National Geographic's Trails Illustrated map of Grand Canyon West covers some of the less frequented but just as wondrous landscape of Grand Canyon National Park

From the boardwalk to the boardroom

you'll be looking fresh too

quick-drying 100% recycled polyester plain weave with 40+ UPF sun protection and mechanical stretch for easy movement

the fabric allows moisture vapor to escape to maintain comfort

and follow you like a shadow

more agile version of the Allpa 35L Travel Pack

Structured outside

Mechanical stretch improves fit

It’s also highly breathable