The Ion Apex 8 harness comes with a partly Curv shell. Its high outline provides optimal back support thanks to a larger area. The design also features controlled rigidity in the center with flexible side parts, resulting in a perfectly balanced harness of support and freedom of movement. With a flex index of 8, it is one of the medium-rigid models of ION's harness range and turns out to be a real all-around talent. The Apex 8 comes with ION's C_Bar 2.0 which already includes the stainless steel kite hook.