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SIDI ST Motorcycle Boots

SIDI ST Motorcycle Boots


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The SIDI ST motorcycle boots are designed for serious protection with excellent support and comfort, suitable for the racetrack or the street. A unique synthetic material called Technomicro microfiber is utilized which performs like leather only stronger, softer, lighter, water resistant, stain-proof and abrasion/tear resistant. This revolutionary SIDI fabric also allows the ST boot to offer more flexibility with an improved feel compared to other synthetic boot materials. A fiberglass reinforced nylon ankle joint provides sturdy side to side support without restricting front to back movement. The ST is armored with protective nylon and polyurethane on the shin, toe and heel with a shock absorbing heel insert that allows 3mm of impact absorption travel. Toe sliders are replaceable (like all other parts on this product) with the original full nylon version or upgrade to ceramic or aluminum inserts. An adjustable air intake keeps your feet comfortable with an easy to operate aerodynamic button located on the outside lower section of the boot.

Easy entry is accomplished with an adjustable upper calf muscle buckle and a full-length zipper. Sidi also added a small elastic stretch panel near the rider’s ankle ball to assist in zipper operation. This garment meets basic health and safety requirements for "CE" approval by the European Directive 89/686/EEC. Protect your feet properly with the ST motorcycle boot from the experts at SIDI!


Comfort & Materials

  • Technomicro composite microfiber
  • Like natural leather only stronger, softer & lighter
  • Water resistant, easy to clean & highly resistant to staining
  • Superior flexibility & feel over other synthetic boots
  • Button operated lower boot air intake with aerodynamic button*
  • Small elastic stretch panel for smooth zipper operation over the ankle ball
  • Shock absorbing heel insert allows 3mm of impact movement
  • Calf muscle closure system provides calf circumference adjustment and easier entry
  • Air Teflon mesh liner
  • Durable rubber top sole
  • Nylon inner sole with removable arch support
  • Side & slider air ventilation system
  • All parts of this boot can be replaced

Fastening System

  • Replaceable ST10 buckle & ST10 strap at calf muscle
  • Full length zipper with stretch panels


  • Nylon shin plate with polyurethane frontal support, both replaceable
  • Fiberglass reinforced nylon ankle joint allows flexibility with firm side to side support
  • Completely replaceable toe slider available in full nylon or with ceramic or aluminum inserts
  • Replaceable screw mounted polyurethane heel shell
  • Robust Technomicro material is more abrasion & tear resistant than leather
  • CE Approved meets basic health & safety requirements of European Directive  89/686/EEC


  • Sizes: 42, 43, 44, 45, 46 & 47

SIDI Boot Size Chart

Boot Size     US Equivalent
41 7-7.5
42 8-8.5
43 9-9.5
44 9.5-10
45 10.5-11
46 11-11.5
47 12-12.5

* Aerodynamic button not pictured

Manufacturer # N/A

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