The Sonora wide calf boot is a nod to the moto boot trend. Stitching detail and non-functional buckle at top of shaft with gusset for adjustability. Full side zipper for easy on and off. Features our Meta Dome technology, reducing forefoot pressure. A biomechanically designed footbed for comfort that keeps you in motion. . Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility. The exclusive alignment technology balances the whole you.