Sporty K9 Dog Cap. - MLB Licensed Cap. - Baseball Premium Dog Cap. - Durable & Adjustable Sports Cap for Dogs & Cats. 3 in 14 MLB Teams Officially MLB Licensed. Cotton twill fabric with Velcro side closures & Chin strap - all adjustable! Embroidered team logo on a team colored cap! Adjustable for perfect fit & comfort. Looks great with our matching accessories; Collars, Bandanas, Leashes, Jerseys/ T-Shirts/ Jackets