Alpinestars 2018 Tech-10 Boots (11) (BLACK) The benchmark boot in motocross; the Tech 10 further advances the innovations that make it the most technical motocross boot ever conceived. From the anatomical shape, with front and rear sliding blades, to the all-new closure system featuring a light and durable buckle closure system, every component of the new Tech 10 boot has been continuously developed and tested in racing for uncompromise Construction: The one-piece co-injected foot chassis incorporates five different advanced polymer compounds in a single streamlined and lightweight piece to offer strength and flexibility throughout the structure, while maintaining its robust structural Innovative, lightweight upper combines full-grain leather with advanced lightweight microfiber and an impact and abrasion-resistant TPU shell. Medial-facing panel is constructed from a one-piece, specifically formulated polymer for improved structural stability and integrity, and incorporates a rubber insert panel for maximum grip contact with bike and improved abrasion resistance.