Designed for kids who love to play all winter long, the warm and wind resistant Buff Junior Polar Buff? combines moisture wicking, quick-drying performance of microfiber with soft, toasty Polartec? Classic 100 Microfleece for warmth. The combination of two performance fabrics along with Buff? versatility makes this essential headwear for skiing, sledding and early morning walks to school.Polartec? Classic 100 lightweight fleece. Soft, polyester microfiber performance fabric. Lightweight thermal performance. Moisture wicking, quick drying, breathable. Fits kids ages 6 to 11.