Arione is designed for Snake type riders with flexible spines who feel comfortable standing or sitting and changing positions on the bike. R3 uses a carbon/kevlar twin flex shell. Features-Wing Flex shell flexes downward where the inner thigh contacts the saddle allowing more efficient pedaling and full-range of motion-Integrated Clip System: tool-free interface in the saddle base that allows quick attachment and removal of fi zi:k packs and blink lights (ICS is found on all saddles unless noted)-Comfortable durable Microtex cover-Composite Carbon-reinforced nylon shell & with Wing Flex technology which enables flexibility where your thighs meet the saddle-Full anatomic cut-out which avoids pressure on the rider s sensitive soft tissue and ensures that all weight is correctly supported across the whole surface of the saddle-Light strong corrosion-resistant K:ium rail Item Specifications-Color:Black-Weight:240-Width:142-Length:300-Material:Synthetic-