The Dainese PRO-ARMOR G2 back protector features a perforated structure that conforms to your body's shape and offers dynamic thickness for a comfortable and lightweight fit. It meets Level 2 EN 1621.2 safety certification and utilizes hydrophobic materials like expanded nitrile rubber for added comfort and ventilation. In addition, its longitudinal flexion and extension capabilities provide significant freedom of movement, and it is compatible with all suitable men's jackets from size 50.