Sidi ST Boot

Replaceable Shin Plate

For increased frontal protection, the ST Boot incorporates inner and outer shin plates mounted with durable screws. Both plates can be removed and replaced independently, ensuring long-term protection and simplified maintenance.

Replaceable ST10 Buckle And Strap

The ST Boot features a replaceable ST10 buckle and strap system that adjusts on both sides of the leg, allowing the opening of the boot to expand for easier entry and a secure, customized fit. Available in regular, long, and extra-long lengths, the straps accommodate a wide range of calf sizes and riding gear combinations.

Ankle Support Brace and Air Ventilation System

The ST Boot features a dual nylon ankle support brace system that connects the ankle joint using screws concealed beneath a protective nylon cap. Reinforced with fiberglass, this mechanism delivers strong lateral stability while allowing smooth front-to-back flex for natural movement. The entire assembly is replaceable for long-term durability. To enhance airflow and rider comfort, an integrated air intake with an aerodynamically shaped button is positioned on the lower outer section of the boot.

Zip Elastic Panel

A built-in elastic panel supports the zipper by providing controlled stretch, allowing it to move cleanly over the rider’s ankle bone. This design improves zipper functionality, reduces stress on the material, and enhances overall comfort when putting the boot on.

Replaceable Slider

The replaceable slider lets riders customize their setup with full nylon, ceramic, or aluminum options. Each insert is designed for optimal wear resistance, making it easy to maintain peak performance over time.

Shock Absorbing Heel Cup

The ST Boot features a polyurethane heel cup designed with an internal shock-absorbing insert, visible through small exterior slits that enhance the boot’s look. The heel cup is mounted with two screws that allow up to 3 mm of controlled movement, helping disperse impact energy for added protection.

Top Sole

The ST Boot is fitted with a durable rubber top sole, providing reliable grip and long-lasting comfort on and off the bike.

Access official product support, warranty information, and certification documents below.

Warranty EU Declaration of Conformity

ST Boot