Vionic High Tide Flip Flop Platform Sandal Black Women's Size US 11 UK 9 These sandals are in good used/pre-owned condition without smells or damage. The original stamped on information has mostly rubbed off as you can see in the photos but these are a UK 9 which makes them a US 11 per the Vionic company website. There also appears to be what I would guess is a minor glue staining on the inside midsole of the left sandal as shown in the photos. Please carefully review the photos and ask any questions prior to purchase.