* Bicycle Racing / Casual Riding * Fusion In-mold Microshell* 23 Vents * Bicycle Racing / Casual Bicycle Riding * 9.2 Oz; 260 Grams * Universal Large: 58 - 65 Cm; 22 3/4" - 25 1/2"; 8 - 8 1/4; Xxxl * Ergodial Fit System* Snap-in Visor* Cam-lock Levers* Pinch Guard Buckle * Cpsc Certified Glossary Of Terms