Birkenstock Zermatt clog. Canvas Textile version in a color like "Eggshell" or "Stone Coin". Product Information Style: Slip-on clog or slipper. Material: It features a canvas (textile) upper and a contoured cork footbed lined with soft suede. Outsole: The Zermatt model has an extra grippy outsole made from a unique rubber-cork blend for added durability and traction, suitable for both indoor and outdoor wear. Design Details: The shoe has offset stitching and a small Birkenstock logo rivet on the side. Sizing: The footbed stamp (visible on the right shoe) indicates size 38 (EU), which typically converts to a Women's US size 7-7.5.