Introducing the Birkenstock Sandals Boston Soft Footbed for men. The classic Boston model features a closed front and a dark brown suede upper with a metal buckle for adjustable fit. The soft footbed includes an integrated latex foam pad for added comfort. This style runs small and narrow. Product Style ID: 0660463. Fabric details: Soft Footbed; Upper: Suede; Insole: Natural Leather; Outsole: Eva; Footbed: Cork. Size Fit: Small, narrow width.