Smart style and Ivy League quality makes the Back Bay Moc far from ordinary. The handsewn, positive fit Strobel moc construction creates a flexible, durable shoe. Big on comfort, the unlined, premium full grain or suede leather shoe also features a removable, anatomical footbed for enhanced wearability. Nylon injection molded arch shank provides support, while the Littleway Stitched. Sebago Back Bay slip-resistant, non-marking rubber sole supplies exceptional traction. Moccasin Construction. Full Grain and Suede Leather Upper. S.E.A. System, Full-length Comfort Footbed with Sebago Energy Return.