Birkenstock footbeds are designed for a roomy fit. Birkenstock Men's US 11.0 11.5 EU 44. Medium Width (D-EE). New. No wears. No box. Oiled nubuck leather upper creates a unique color effect and develops a beautiful patina Three adjustable straps for a custom, secure fit Contoured cork-latex footbed creates custom support with wear Deep heel cup supports the foot tissue and holds the heel bone firmly in its natural position Heel mould activates the calf muscles, stabilizes the back of the foot, and improves gait and coordination Added support for the interior and exterior arch Transverse arch support runs through the middle of the footbed and stabilizes the metatarsal bone for a solid stance Raised indentations at the front of the footbed ensure that the toes remain loose and spread out in their natural position Drawn up footbed protects the toes during the rolling motion of the foot Suede footbed lining for added comfort Lightweight and flexible PU sole smooths out slight irregularities in the floor and adds underfoot cushioning