Four nylon cam adjustable buckles with a replaceable nylon strap and housing design, Stamped steel shin plate, Alpinestars exclusive rubber compound sole with replaceable foot peg insert, Ergonomic ankle support with injected TPU ankle pads, Stamped stainless steel sole guard, Stamped steel shank, Exclusive ankle brace protector, Full-grain leather upper and lining, Leather over leather front flex zone, Replaceable anatomic footbed, Internal TPU plate on the inner side of the boot is curved in an anatomic shape and covered with leather