SIDI Mag1 Racing Boots BOSRA0122246

features: replaceable shin plate: - replaceable shin plate in polyurethane.tecno 3 magnetic: - an all new micrometric tecno-3 magnetic closure mechanism is easy and quick to use as well as being highly adjustable and light in weight. the tecno-3 magnetic closures close the boot with an extremely resistant steel wire, that is hooked to the clip with the aid of a magnet. mechanisms and retaining clips are replaceable.micrometric memory strap: - allows you to adjust the circumference of the calf to the millimeter, with indented memory-regulation straps.tpu bands: - arch and achilles areas are covered with sidi's exclusive elastic textile and injection molded polyurethane comfort panels. the arch area utilizes two tpu bands next to the tecno-3 magnetic closures, for a maximum support and wrap of the arches.support braces system: - the rear upper is made in polyurethane, and is assembled to the boot with two screws: one on the outside under the tecno-3 magnetic mechanism, the other on the inside which holds the micrometric adjuster strap. the screws support and block the internal support system which is made with carbon fiber beams, making up the frame of the boot.this system allows excellent flex movement front-to-back while being firm side-to-side.the tecno-3 magnetic mechanism and the micrometric memory strap adjust the leg circumference to fit around the calf muscle.asymmetric heel cup: - asymmetric and shaped shock absorbing heel cup, smooth and flat inside, for more adherence with the motorbike, with shock absorbing system in the back and outside. the shell and the shock absorbing system are replaceable through a screw and an interlocking system./strongspecifications:- top sole: rubber sole.