DESCRIPTION
All size is standard，if your head circumference is 54-62cm,
DETAILS
*The Cap Is Suit For u Keeps Sun & Sweat Out Of Your Eyes
*This Bike Cap Fits Perfectly Under Your Road Bike Helmet.
*Its Elastic Band Ensures It Fits Almost All Heads.
*As a bonus, the brim is reflective, helping you stay safe in the early morning or nights.