Fizik Arione R1 Saddle - Carbon Black LargeFizik Arione R1 Saddle Carbon Black Large. Arione is designed for Snake type riders with flexible spines who feel comfortable standing or sitting and changing positions on the bike. R1 uses a carbon injected nylon twin flex body for lighter weight. Wing Flex shell flexes downward where the inner thigh contacts the saddle allowing more efficient pedaling and full range of motion Carbon Thermoplastic Composite shell with Wing Flex Carbon Braided Rail: