CPSC approved 23 vent helmetLarge front vents, and lower coverage on the rear make for a well rounded off road helmetHead Lock adjustable dial retention system for fine tuning the fitIntegrated removeable visorAll PurposeIn-MoldLG/XL 22-3/4 to 24` (58 to 61 cm)Black/Grey23Head LockUPC/EAN/GTIN: 888571120286