Smartwool Kids' Classic Thermal Merino Base Layer Crew 2026 Backpacks Hollow pins save precious grams

Hollow pins save precious grams of weight

BASE FINISHING: Natural wax

recycled polyester strap

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

Hook and loop straps hold the bag securely to the stem and top tube

Smartwool Kids' Classic Thermal Merino Base Layer Crew 2026 Backpacks Hollow pins save precious gramsOur 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