Fizik's Arione Versus combines their revolutionary Spine Concept fitting technology with a pressure relief channel for high-mileage comfort. The carbon-reinforced Wing Flex shell moves with the rider's pedal stroke, offering unmatched comfort and an exceptional fit, while the deep center channel reduces pressure on sensitive tissue and nerves. And, as always, it boasts the features and quality you expect from a Fizik: a Microtex cover with efficiency-enhancing thigh glides, light, strong Kium rails, and supportive, comfortable padding for on-the-road comfort.