100% polyester Coolmax® fabric sweatband. Waterproof and breathable fabric. Low profile 5 panel design. Stretch-webbing adjus... 100% polyester Coolmax® fabric sweatband. Waterproof and breathable fabric. Low profile 5 panel design. Stretch-webbing adjuster with low profile clip closure. TearAway label for ease of rebranding.Head size : 0