Alpinestars Tech 7 Double Boots Purple White The revolutionized Tech 7 MX boot incorporates innovative materials and technology in a completely new design for a lighter, more anatomically profiled performer. This CE certified boot promotes core stability and flex via a biomechanical pivot while offering excellent ankle protection. The boot chassis has been designed to give complete feel and optimized interaction with bike controls, while the innovative buckle system allows easy, precise closure.