Sidi ST Air Motorcycle Racing Boots Size:43 two-color LED indicates stage of

two-color LED indicates stage of charger

Double stitched in high-stress areas

Stretch panels on sleeves and sides for improved mobility and comfort

grip and durability

Sidi ST Air Motorcycle Racing Boots Size:43 two-color LED indicates stage ofDesigned in house from the ground up, multi purpose boots for every situation. ST Air is the ventilation expert for a more breathable experience. Built on over 60 years of experience, this boot covers a wide range of situations and is developed with all the features a boot should have, including ankle and heel protection. Designed for everyday use. Features Replaceable Shin Plate Shin plate are easily replaceable trough screw. Replaceable ST10 Buckle