Heavyweight 350g Merino to keep you warm in the coldest conditions. Premium 17.5 micron wool fibers deliver a non-itch experience. Deep hand pockets to keep some gear and your hands out of the cold. Hidden thumb holes keeps your sleeves in place while you're on the move. Naturally odor resistant and moisture wicking. Fabric Contents // 95% Merino Wool, 5% Elastane.