Children's cap Umbro TOLLY with a Velcro strap to regulate the circumference of the cap. Children's cap Umbro TOLLY (code DKCK1S-23801-A) is a classic cap with a firm, slightly curved peak. The circumference of the cap can be adjusted using a textile strap with Velcro. strong, slightly curved cap ventilation holes for better moisture removal cap circumference can be adjusted with a textile strap with Velcro Material: 100% polyester, lining 80% polyester 20% cotton