The Nucleon KR-CELL CiR has been designed to offer protection to track and sports bike riders while ensuring maximum levels of breathability and comfort. * The Nucleon KR-CiR is a high performance, super lightweight track and race chest protector featuring the Nucleon Cell technology. * The double-layered chest shell plate is constructed from a high performance polymeric material blend for optimized flexibility and excellent weight saving properties. * The chest protector’s structure design and structure changes from the centre towards the outside and provides the perfect balance between force dispersion and energy absorption. * Unique CELL microstructure is designed for advanced energy absorption, adaptivity, maximum breathability and air flow. * Ergonomic protection plate contours to the natural curve of the body ensuring optimum fit while riding. * Soft comfortable airmesh on the body side of the protector offers maximum breathability and rider comfort. * Level 2 protection (EN 1621-3:2018)