Sizing Guide Get the Right Fit
• Front and back hard shell guards are constructed from a performance poly-material blend for optimized flexibility and excellent weight saving.
• Front shell CE certified against EN 14021 (stone shield).
• Back protector CE certified according with the EN 1621_2: 2014 level 1.
• Shells are perforated for maximum breathability and cooling ventilation, perfect for those hot dusty track rides.
• Soft bio-foam padded chassis for optimized levels of comfort and close-to-the-body fit.
• Modular design means A-4 is optimized for use with Alpinestars BNS neck braces.
• Removable upper back padded panel for BNS neck support compatibility.
• 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.
• Adjustable kidney elastic strap incorporates thermoformed perforated rib protection panels for high levels of protection without compromising movement.
• Kidney closure system has newly designed, quick and easy-to-use buckles.
• New guard closure means one size fits a broad range of rider body types.
SELECTION AND FITTING