The O'Neal Underdog $ Body Arnor Features: Constructed with high-impact injection-molded plastic and IPX material designed to protect your shoulders, elbows, forearms, chest and back. IPX back protector extends from the base of the neck to the lower back for increased protection, Adjustable and elastic kidney belt, Extensive mesh and padded foam venting to keep cool, 9 areas of adjustment for the perfect fit , Front and back certified according to EN 14028