Material: 100% Cotton. Cotton sweatband. Adjustable plastic snap strap. 1. Engineer cap/Pinstriped Denim Cap. Material: 100% Cotton. Cotton sweatband. Adjustable plastic snap strap.Color, size, material, embroidery or printing logo all can be customized,2. You can choose products from our company's website, or send us your sample or design by e-mail.3. We do all styles of caps, knitted hats, ...