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Between growth spurts and back-to-back activities, tweens need a base layer that adapts just as fast as they do. The Evolver Crewneck is designed for the in-between years—with stretch, breathability,...

Somewhere between kid and teen, comfort gets complicated. The Evolver Base Layer Pant is built for this in-between stage—lightweight, stretchy, and durable enough to handle changing sizes, shifting temps, and...

Built for powder chasers, the Summit Base Layer Crewneck provides all-day warmth and comfort on brisk days. Its soft, lightweight, 4-way stretch fabric ensures unrestrictive movement while providing crucial breathability...

No matter what Mother Nature has in store, step into the cold with the warm, dry comfort of the Men’s Summit Base Layer Pants. This cold-weather staple boasts smart ventilation,...

Youth Winter Base Layer Top & Bottom Set. Lightweight, breathable top and pants set. Just like busy kids, the toddlers' Burton Lightweight Base Layer Set is designed to stretch, breathe,...

Our top-rated Micro-Elite Chamois base layer now comes in Youth sizes! Featuring a sleek outer surface for effortless layering and a plush, fuzzy inside that adds warmth without the bulk....

Meet the Kari Traa Faith Half Zip, a 90% Merino wool performance layer featuring our Female First body mapping technology. This semi-seamless top integrates supportive structure and ventilation where you...

The Kari Traa Rose Half-Zip is a powerhouse of warmth and comfort. Wool fibers will keep you cozy even when wet, and stretch fabric mapping allows for improved movement. The...