Main upper material made in full grain leather with Vintage effect Toe box and heel counter internal reinforcement give structure support and impact resistance Quilted and padded shift guard reminds the old Alpinestars' style giving comfort and protection Alpinestars' new anatomical foam-backed dual density PU ankle disk protection Drystar Membrane subtly into chassis for 100% performance against wet penetration Zip closure on medial panel plus adjustable leather leg strap and metal eyelet lacing closure system ensure easy entry and highly personalized fit Replaceable anatomical EVA footbed with Lycra lining on top for comfort. Alpinestars exclusive vulcanized rubber plus injected PU midsole designed for optimal combination of comfort, grip and weight saving Firm Drystar is CE certified to EN 13634:2010