Technomicro Material: Crafted with Technomicro base material for exceptional durability.
Tecno-3 Push Closure: Features SIDI’s exclusive Tecno-3 Push Closure System for secure and easy fastening.
Flexible Design: Elastic panels in front and rear flex areas for maximum comfort during rides.
Airflow System: Perforated design and breathable mesh panels provide superior ventilation, keeping your feet cool and comfortable on extended rides.
Ankle Support Brace: Utilizes a single ankle support brace with nylon and fiberglass, providing enhanced ankle joint support.
Ventilated Ankle Support: External ankle support brace comes with air vents and small ventilation slots for added breathability.
Arch Support: Nylon inner sole with a removable arch support pad for personalized comfort.
Reinforced Construction: Double stitched in high-stress areas, fully encapsulated heel cup for durability.
Comfortable Lining: Lined with anti-abrasion Cambrelle in the foot area and perforated Teflon-treated nylon for comfort and breathability.
Innovative Toe Slider: Toe slider made of nylon reinforced with fiberglass, featuring an air intake and alloy insert for performance.
Dual Compound Sole: Equipped with a dual compound sole for improved grip and stability.
Toe Shift Pad: Includes a DuPont® polymer toe shift pad for added durability and functionality.

Featuring a perforated upper for breathability and trusted by professional riders, it’s designed to offer unparalleled street-level protection.

When prioritizing breathability, look no further than the Rex Air. With a perforated upper for superior ventilation, this boot offers all the attributes of the Rex, plus an extra advantage. Every aspect of this racing boot has been meticulously crafted to deliver top-notch protection. Trusted by our professional riders, the Rex integrates high-grade TPU protectors and a fiberglass-reinforced nylon exoskeleton for essential support. The innovative high-density resin dial system ensures a perfect fit and allows for convenient adjustments from both sides. Its side-slip design further enhances a secure and confident ride.

Technomicro Material: Crafted with Technomicro base material for exceptional durability.
Tecno-3 Push Closure: Features SIDI’s exclusive Tecno-3 Push Closure System for secure and easy fastening.
Flexible Design: Elastic panels in front and rear flex areas for maximum comfort during rides.
Airflow System: Perforated design and breathable mesh panels provide superior ventilation, keeping your feet cool and comfortable on extended rides.
Ankle Support Brace: Utilizes a single ankle support brace with nylon and fiberglass, providing enhanced ankle joint support.
Ventilated Ankle Support: External ankle support brace comes with air vents and small ventilation slots for added breathability.
Arch Support: Nylon inner sole with a removable arch support pad for personalized comfort.
Reinforced Construction: Double stitched in high-stress areas, fully encapsulated heel cup for durability.
Comfortable Lining: Lined with anti-abrasion Cambrelle in the foot area and perforated Teflon-treated nylon for comfort and breathability.
Innovative Toe Slider: Toe slider made of nylon reinforced with fiberglass, featuring an air intake and alloy insert for performance.
Dual Compound Sole: Equipped with a dual compound sole for improved grip and stability.
Toe Shift Pad: Includes a DuPont® polymer toe shift pad for added durability and functionality.