Only for Street Hockey use with official size (2 5/8") street hockey ball-Not HECC/CSA certified (not for ice hockey or any type of "puck" play) / Designed to reduce, not prevent, injury Anatomically designed ACD vented shell, full coverage adjustable back plate, extended chin and jaw contoured design, adjustable elasticized quick-snap straps Molded high-impact ABS plastic, AEGIS MICROBE SHIELD antimicrobial technology Chrome finish welded steel cage Recommended sizing for age 10 to adult