Useful to protect the head 12 versus 7, approved by CE IRB HEAT PRO competition rugby helmet. Useful to protect the head: rugby, flag football, to protect the head from falling, 7 versus 7, approved by CE IRB, soccer football goalie. Adjustable, airing for sweat evaporation. Adult and youth, kid helmet Size Head measurements: XL 60 cm / 24'' L 58 cm / 23"1/4 M 56 cm / 22"1/2 S 54 cm / 21"1/2 XS 50 cm / 20"3/4