Optimise Your Safety Without Weighing Down Your Kit Equipped with D3O(R) foam, this vest offers active protection: the foam is flexible to naturally follow your movements and instantly hardens upon impact to absorb shocks and ensure your safety. Thanks to the BOA(R) system, the fit is precise and quick, providing secure support. It combines lightness, ventilation, and an ergonomic cut that reduces chafing. This vest, patented by Ekoi, effectively protects your chest and back while offering optimal freedom of movement.