SIDI · Boots · Street
The SIDI Rex Boot is a pair of SIDI street motorcycle boots built around a protective, track-ready layout with airflow-focused detailing. It combines Technomicro base material with a fiberglass-reinforced nylon exoskeleton concept and high-grade TPU armor elements described in the product information.
Designed for Street riding, the Rex Boot emphasizes a secure, dial-style closure, structured ankle support, and a performance-minded sole package. Vented panels and ventilation slots in the external ankle support brace help keep air moving through the boot, while replaceable components like the toe slider and shin plate are intended to support long-term use.
Comfort
The Rex Boot uses SIDI's Tecno-3 Push Closure System to make fastening quick and secure. The dial-style system is intended to deliver precise, micro-adjustable fit, and it is positioned on the exterior as described to help keep it away from contact zones. This setup is designed to keep the boot feeling stable as conditions change through a ride.
Construction
Protection-focused construction includes a single ankle support brace built with nylon and fiberglass to provide enhanced ankle joint support. The heel area is fully encapsulated, with double stitching in high-stress zones for durability. Up front, the boot uses a nylon toe slider reinforced with fiberglass, with an air intake and an alloy insert for performance-focused function.
Aerodynamics
Elastic panels in the front and rear flex areas are used to support comfort during rides while allowing movement. Inside, the Rex Boot features a nylon inner sole with a removable arch support pad for more personalized feel. Underfoot, a dual compound sole is specified for improved grip and stability, with a DuPont® polymer toe shift pad for added durability and functionality.
Ventilation
A central element of the Rex Boot is its external ankle support brace system, which is described as incorporating air vents and small ventilation slots to add breathability. The brace uses nylon and fiberglass and is paired with a fully encapsulated heel cup and reinforced stitching in high-stress areas. Together, these details aim to keep the ankle supported and the boot structurally secure, while still integrating airflow features intended to help manage heat during Street riding.
Installation
The Rex Boot is set up with replaceable components in key wear areas. The product description also calls out a replaceable shin plate, adding another serviceable touchpoint for riders who put consistent miles on their gear.
| Crafted with Technomicro base material for exceptional durability. |
| Features SIDI's exclusive Tecno-3 Push Closure System for secure and easy fastening. |
| Elastic panels in front and rear flex areas for maximum comfort during rides. |
| Utilizes a single ankle support brace with nylon and fiberglass, providing enhanced ankle joint support. |
| External ankle support brace includes air vents and small ventilation slots for added breathability. |
| Nylon inner sole with a removable arch support pad for personalized comfort. |
| Double stitched in high-stress areas, fully encapsulated heel cup for durability. |
| Lined with anti-abrasion Cambrelle in the foot area and perforated Teflon-treated nylon for comfort and breathability. |
| Toe slider made of nylon reinforced with fiberglass, featuring an air intake and alloy insert for performance. |
| Equipped with a dual compound sole for improved grip and stability. |
| Includes a DuPont® polymer toe shift pad for added durability and functionality. |
| EU Declaration of Conformity. |
As listed by SIDI for this boots.
SIDI Boots Size Chart Boots & Riding Shoes Care Manual (PDF)
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