The revolutionary Thermo Composite CURV material is a totally new innovation in harness development and sets a new benchmark in design and performance. Featuring this latest development, the brand-new, fully molded RIOT CURV 9 offers an outstandingly light yet incredibly robust harness construction. The 3D Plus Spine was designed to support the rider exactly where needed most to ensure long and joyful sessions when the waves are pumping. The low outline increases the freedom of movement even further. The RIOT CURV 9 is one of our medium stiff harnesses (flex index 9).