Giro Hex Mountain Cycling Helmet '10. The Hex fuses a muscular, progressive style with the versatility you need for aggressive trail riding. It’s a great choice for price-conscious riders looking for a rugged all-mountain helmet that offers loads of premium features.

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Features:

Fit System: Roc Lock 4

Constrction: IN-Mold

Ventilation: 21 vents

Visor: P.O.V. adjustable visor

Sizes: S (51-55cm/20-21.75"), M (55-59cm/21.75-23.25"), L (59-63cm/23.25-24.75")

Weight: 310g/11 oz.