Smartwool Kids' Classic Thermal Merino Base Layer Crew 2026 Backpacks and incorporating a new aluminum

and incorporating a new aluminum Power Block that delivers an impressive 30% increase in lateral power transfer

170mm length Bottom bracket Shimano SM-BB52

FIT - Custom Dial: The adjustable dial fit system for quick and easy adjustments is now integrated in the liner for optimized fit and durability

The Seral 7 lumbar pack was made for you

Smartwool Kids' Classic Thermal Merino Base Layer Crew 2026 Backpacks and incorporating a new aluminumOur Kids' Classic Thermal Merino Base Layer Crew is made of 100% responsibly sourced Merino wool to help your little ones stay comfortable on snow days and activities in the mountains. With a flatlock seam construction designed to help prevent chafing, a crew neck built with set in long sleeves, and all of the benefits of Merino, this kids' base layer will help them enjoy winter more. "Knit in Vietnam: 100% Merino Wool Flatlock seam construction