The Giro(R) Adult Sestriere Snow Helmet is an ideal choice for juniors and beginning riders. You'll love the sleek, minimal style, while Giro's(R) Super Fit engineering ensures that the helmet fits comfortably. The hard shell construction is durable so it will last for many trips to the mountain! DESIGN & TECHNOLOGY: Designed using Super Fit(TM) Engineering using anatomic measurements & rider input for optimal fit. Hard shell construction features a durable plastic shell laminated to an EPS foam liner. Slalom Chinbar compatible Certification: CS EN1077 SIZING: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your child's forehead without hindering vision. Once you've got the right size, you can adjust the fit.