For over forty years Sidi Sport has been inventing, designing and manufacturing the sports footwear of the future. The new \"Sidi Vertigo\" racing boot, developed by Sidi is a perfect blend of comfort and high performance for champions and for all motor bike fans. Sidi Vertigo has a range of innovative features making it a unique boot, the rear part can be adjusted to fit perfectly to the calf. The leg portion - in polyurethane - is fitted with the Sidi TECNO VR closing system patented by Sidi, to provide adjustments via a nylon thread passing through to lateral holes. Twist the Sidi TECNO VR adjuster to wrap the boot symmetrically around the calf. The lower outer beam of the Sidi Vertigo is fitted with an air intake which can be opened or closed according to needs, by a simple sliding vent. For greater foot safety, the heel of the Sidi Vertigo model is fitted with a transparent shell in TPU with two anti-impact shock absorbers. The shell has 3 mm of impact movement. On the outside, the Sidi Vertigo model is complete with an interchangeable nylon shin plate to protect the shin and with nylon toe slider, to prevent wear and tear. The new rubber sole was created with slip-proof design.Inside, the Sidi Vertigo provides maximum comfort: the breathable lining is treated with Teflon and fitted with air holes. The Fabric protection process prevents water or sweat from being absorbed. The boot dries quickly and does not collect mould. Features High-tech racing boots from Lorica Calf-width adjustment by TECNO VR system Shin guards made of nylon, exchangeable shock absorbing polyurethane heel counter lateral ventilation mechanism Breathable lining exchangeable front grinder Rubber sole made of rubber, with steel insert This item cannot be shipped to the United States and Canada.