Technomicro upper construction Techno 3 closure system Teflon lined inner Double stitched in impact zones Shock absorbing heel cup All bolt-on parts are replaceable Nylon inner sole with removable arch support pad Anti-twist external ankle support TPU toe slider All parts of the boot can be replaced Sidi are proud to offer the new Sidi Roarr safety boot. With Sidi's great style, feel, support and quality there are no finer performance road boots in the world. Sidi have reimagined some of their most successful technological breakthroughs of recent years to deliver a stylish cutting edge motorcycle boot. The Sidi Roarr boot are the perfect balance between a high performance track day boot and the comfort of a touring boot. The Sidi Roarr boot comes fully loaded with features including Sidi's Techno 3 adjustment system, Teflon mesh lining, elasticated stretch panels, replaceable toe sliders, nylon shin plates and external ankle support braces. The Sidi Roarr boot is an aggressive road and track boot with the protection you would expect from the legendary brand.