EN 1621-2:2014 back protector rib protector pocket for optional art. 9316 Velcro for optional chest protector art. 9280 / 9784 hard shell protector at back electronic Held Air protection System from In-Motion Fit/features stretch fabric Held Clip-in Technology Lining 3D air mesh panels in back to promote air circulation Outer shell sensitive mesh breathable mesh panels