If you prefer a thinner sock with less bulk, the Speyer Coolmax® Thin Socks are what you\'re looking for. With a pair of these thin, moisture-managing socks inside your motocross boots, your feet will stay cool, comfortable and dry. Coolmax® fabric construction keeps feet cool and dry Thin construction for a cool, comfortable fit Arch support Black: 49% nylon / 35% acrylic / 5% Coolmax / 5% cotton / 5% polyester / 1% elastane Red and Sand: 76% acrylic / 7% nylon / 5% Coolmax / 5% cotton / 5% polyester / 2% elastane