Triple layer chest protector features a highly perforated impact absorption insert for high levels of ventilation and protection Features cell technology back protector Removable shoulder pads for high levels of customization Extended padding to offer more protection against tire roost without obstructing arm movement The protector plastic shells are perforated for maximum breathability and cooling ventilation Adjustable elastic straps incorporate thermoformed perforated rib protection panels for additional protection without compromising movement Elastic closure system features newly designed, quick and easy-to-use buckles that fit a broad range of rider body sizes Thermoformed padded chassis for optimized levels of comfort and close-to-body fit Adjustable shoulder straps for optimal fit Bionic Neck Support compatibility Silicon BNS pull tabs for easy and safe engagement of the BNS Additional thermoformed EVA tail extension for extended coverage to the lower spine Fits Medium/Large