Sidi Rex Race Motorcycle Boots Sidi Sport’s design team has created a brand new motorcycle sport boot with a modern and futuristic look that utilizes the highest quality materials in its structure to create a boot at the forefront of technology, functionality and production quality. The Rex was developed through research, laboratory tests and ‘on the track’ testing thanks to Sidi’s Moto-GP riders’ input, all to offer you a brilliant performance during your rides. An excellent choice for every rider that is looking for a protective yet breathable boot, with a versatile and extremely comfortable fit not to mention an easy entry. Features: Replaceable shin plate Closure system techno-3 push Ankle Support braces with ankle joint Elastic panels on front and back joint Side air ventilation system Asymmetric and shaped heel cup Replaceable slider Nylon inner sole with removable arch support pad