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The Giro Sestriere Ski / Snowboarding Helmet features sleek styling and comfort inspired by the top race models in durable design that delivers a great price. It is the perfect helmet for juniors, beginners, or anyone who wants a no-frills, alpine-inspired helmet. Compliance: CE EN1077Slalom Chinbar Compatible.6 Classic Super Fit Sizes. Extra Small: 52-53.5 cm, Small: 53.5-55.5cm, Medium: 55.5-57cm, Large: 57-59cm, Extra Large: 59-60.5cm, Extra Extra Large: 60.5-62.5cm.Super Fit Engineering: Super Fit Engineering is the foundation of Giro's design process. Every new Giro product is designed with reference to their database of anatomic measurements and rider input. They then test the design repeatedly in the lab and in the hands of riders so they can gather feedback and make refinements to create a final product that fits and performs at the highest level. Hard Shell Construction: Hard Shell construction produces great helmets at a great price. A durable outer shell is molded and then attached to the EPS foam liner.