Alpinestars Fluid Pro Knee Braces

Incorporating an evolved chassis constructed from an innovative, advanced fiberglass compound for improved performance, the Alpinestars Fluid Pro Knee Braces are a versatile, fully CE certified knee brace. Designed for the stresses of off-road riding, the Fluid provides support and helps protect from hyperextension in the event of a crash. Lightweight, ventilated and highly customizable this brace offers a personalized and secure fit.


  • Optimized structural integrity and frame strength
  • Lightweight ‘exoskeleton’ with reduced material construction design
  • Channeled padding and mesh zones for optimized ventilation and airflow
  • 25 per cent lighter than current B2 brace versions
  • Performance at temperatures as low as -20°C (-4°F)
  • CE Certified CE 1621-1 K type B
  • Sold as a set

The Fluid Pro is designed to provide a highly customizable, personalized and stable fit:

  • SAS (size adapter system) provides adjustable and versatile brace fitment in size ranges S-M-L and XL-2XL
  • Brace is supplied with leg-size adjustment spacers (1mm, 2mm and 3mm) on either side of hinge
  • Two pairs of flexible, anatomically optimized ‘ergo-fit’ spacers (6mm and 9mm) for improved directional articulation performance
  • Innovative, dual X-strap system promotes secure fitment of brace in all riding positions and includes combined buckle and VELCRO® brand closures for rapid and easy mounting
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Product Style Item # Manufacturer Product # Availability
White / SM-LG 1062738 6501316-213-SL In Stock: Ships within 24 hours
White / XL-2XL 1062739 6501316-213-XL Available: Requires 1-3 business days of lead time prior to shipment