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The Alpinestars A-4 Chest Protector has been discontinued and will not be returning.

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Alpinestars A 4 Chest Protector

The lightweight A-4 Chest Protector offers high levels of upper body protection that is CE certified against impacts, and incorporates thermoformed kidney protectors. The A-4 has an innovative strap closure system for a quick and secure fit while the modular design allows for the use of Alpinestars BNS neck support for the ultimate in off-road protection.


  • Front and back hard shell guards constructed from a performance poly-material blend for optimized flexibility and excellent weight saving
  • Shells are perforated for maximum breathability and cooling ventilation, perfect for those hot days on the track or trail
  • Adjustable kidney elastic strap incorporates thermoformed perforated rib protection panels for high levels of protection without compromising movement
  • Front shell is CE certified against EN 14021 (stone shield)
  • Back protector is CE certified according with EN 1621_2: 2014 level 1
  • Kidney closure system has quick and easy-to-use buckles
  • Guard closure fits a broad range of rider body types
  • Soft bio-foam padded chassis for optimized levels of comfort and close-to-the-body fit
  • Modular design means the A-4 is optimized for use with BNS neck braces
  • Soft touch BNS puller for easy and safe engagement of the BNS
  • Removable and adjustable shoulder pads for size regulation with integrated BNS puller
  • Additional thermoformed EVA tale extension for extended coverage to the coccyx area
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Product Style Item # Manufacturer Product # Availability
XS-SM / Black/Hi-Viz 1254946 6701517-553-XS/S Out of Stock
MD-LG / Black/Hi-Viz 1254947 6701517-553-M/L Out of Stock
XL-2XL / Black/Hi-Viz 1254948 6701517-553-XL/2XL Out of Stock