100286 Carhartt Men's Canvas Mesh-Back Cap A 100% polyester mesh back makes Carhartt's Buffalo cap a cool and comfortable choice on warm days. Constructed of 100% cotton duck, it features a Coolmax sweatband that wicks away moisture when the work gets heavy. Featuring a Carhartt logo sewn on the front, this light structured, medium profile cap offers a pre-curved visor plus an adjustable fit with a plastic back closure.