Sizes:
S/M (52-60 cm)
L/XL (61-64 cm)

Features:
Injection-molded ABS shell
Expanded Polystyrene (EPS) protective inner foam for high impact protection
2 front intake vents
7 multiple top-mounted exhaust vents, and 2 rear exhaust vents
Adjustable Spin Dial allows for perfect fit
Three sets of removable low-density polyurethane foam insert liners for comfort & refined fit
Anti-Pinch, Magnetic Buckle for easy, one-handed operation
Reflective logos front, back & sides
1 Nutcase wrist band for letting your friends know that you "Love Your Brain"�!
Rust proof rivets with Nutcase helmet guy logo
Soft fabric chin strap for maximum comfort
Certified CPSC for Bicycle Riding