Natural Rubber lining Hook & Loop closure Founded in 1963, Alpinestars has built a reputation of innovation and prestige. Now, fifty years later, Alpinestars is synonymous with quality, protection, technology and style. Alpinestars develops world-class technical apparel and footwear for all forms of motorcycling, auto racing and action sports as well as offering a large range of stylish casual clothing.Main upper material constructed from advanced microfiber for durabili A hybrid material - a mixture between hard plastic and soft silicone. A very dense and smooth rubber. Founded in 1963, Alpinestars has built a reputation of innovation and prestige. Founded in 1963, Alpinestars has built a reputation of innovation and prestige. Now, fifty years later, Alpinestars is synonymous with quality, protection, technology and style. Alpinestars develops world-class technical apparel and footwear for all forms of motorcycling, auto racing and action sports as well as offering a large range of stylish casual clothing.Main upper material constructed from advanced microfiber for durabili A hybrid material - a mixture between hard plastic and soft silicone. A very dense and smooth rubber.