- 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
- 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
- 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
