From Vionic, the Men's Uptown Boat Leather Slip On Boat Shoes feature: Leather upper Received APMA Seal of Acceptance Classic boat shoe lacing Slip on Removable EVA footbed Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility Durable synthetic rubber outsole that meets or exceeds 51% on our Sustainable Footwear Index. Imported.