YELMO-Black Yelmo is the first helmet with support approved and compatible with GoPro® cameras. With adjustable visor in 8 points to place glasses type mask, strap holder glasses and FS1 adjustment system developed by Catlike and Boa Technology. (International homologations. This product isn´t affiliated with or approved by GoPro, Inc.)   SM 54-56cm         MD 57-59cm         LG 60-62cm