FitFlop Womens FF-Lux Full Zip Knee-High Leather Boot Shoe Cotton,Leather Imported Click here for the women's FitFlop sizing guide. Click here to learn more about the biomechanically engineered, ergonomic FitFlop&#174; footbed. FitFlop&trade; recommends you order a size up from the one you normally take for shoes built on the SUPERCOMFF&trade; midsole. Keep your season simple and chic with the FF-Lux Knee Boot&trade;. Premium leather upper. Treated with 3M&trade; Scotchgard&trade; protective material for water repellence. Stretch gore at top of shaft. Full length zipper closure. Leather and brushed cotton interior lining. Leather-wrapped footbed. Features the FF2&trade; SupercomFF&trade; dual-density, ergonomic, and pressure-diffusing midsole for optimum support and comfort. Please click here for a video about Microwobbleboard technology. Received the APMA Seal of Acceptance, for footwear found to promote g