ION's 3D Fit Technology offers the best fit for each rider, based on back length and waist circumference. The Riot Curv harness comes in regular and tall sizes, plus an exchangeable Ergo_Pad for customizable lumbar support. The medium rigidity (flex index 14) of this harness delivers a balance of direct feeling, flexibility, and support. A super lightweight Curv construction distributes forces evenly. Hyper_Foam adds ergonomic support and lightness, and an internal flex belt adds freedom of movement. The sleek Spectre Bar (including kite hook) is completed by Curv_Flaps for an enhanced force distribution. The set includes an integrated Knite_Knife Multitool 2.0. Matchu Lopes and Liam Whaley ride the Riot Curv.