Material: Supplex. Supplex is an advanced nylon fabric, engineered to provide the soft, supple touch of cotton with the strength, durability and performance advantages of nylon. Clothes made from supplex stay new-looking longer. - Safari Shape - Trim: Mesh overlay, chin cord, toggle - Brim: 3", Coolmax Sweat Band is made of a Dupont fabric with the capability of moving moisture away from the skin. They are attractive inner bands that secure your favorite hat to your head while keeping your forehead dry from high temperatures and busy activities.