Birkenstock Basel Cocoa Habana brown wool with dark brown oiled leather strap with antique copper buckles on the popular close toe clog slide This Birkenstock clog is a unisex slip-on style shoe in a size 7.5-8 (US) or 38 (EU) in excellent condition. It features a closed toe design with an adjustable buckle strap for comfort and a secure fit. This clog is constructed with a cocoa Habana wool felt upper and oiled leather outsole. The slipper is lined with wool and has a cushioned suede insole for added comfort, making it suitable for travel, activewear, and casual wear in the summer, fall, and spring seasons.