Caterpillar CAT Black & White Twill Mesh Snapback Cap Structured twill and plastic mesh cap. Has a plastic back strap and front embroidery. The Original Truck Cap from Caterpillar is made with a combination of black cotton twill in the front along with a white polyester mesh back. The traditional CAT Trademark logo is boldly embroidered on the front, and there's a plastic snap strap closure in the back to help you achieve the perfect fit.