Features: Designed in Canada Exclusive LEXAN® EXL Polycarbonate Shell - superb Impact protection EPP & Vinyl Nitrile Foam Liner - form fitting liner as well as vibration dampening. Certified wire cage Large Window for Great Vision Fully Adjustable Five-Point Backplate Strap Sweatband Included CSA, HECC and CE Certified Itech Sizing Guidelines: Mask size / Hat size (Head circumference) Junior / 6 1/2 - 7 1/8 (20.4 - 22.4") Senior / 7 1/8 - 7 5/8 (22.4 - 24")