Kid's Hat 50% acrylic 45% Merino wool 5% elastane Moisture-wicking material Odor management  Fast-drying warm fabric Reversible Smartwool Kid's Ski Racer Beanie is reversible to give your kiddo options to wear in a warm and soft wool cap. Perfect for playing outside in the snow as the wool will work to wick moisture away and dry quickly for all-day warmth. Smartwool Ski Racer Beanie - Kid's