Classic Birkenstock Boston clogs in vegan materials including an upper made from the skin-friendly, hard-wearing synthetic material, Birkibuc. Good used condition, light wear. EU 41/US 10-10.5 Women’s in the regular/narrow fit. Anatomically shaped cork-latex footbed Upper: Birkibuc Footbed lining: microfiber Sole: EVA Details: strap with an individually adjustable metal pin buckle; vegan; color-coordinated outsole