the inside sole of this shoe feel like suede and be very soothing to the foot , along with the support contour that I need . I prefer the birkibuc to the suede strap because bircubuc hold its shape when the shoe be off so you can slip you foot right in where suede collapse and you have to wriggle in . I be not crazy about the color -- it be kind of a stone cold gray and I would have prefer some warmer brown tone -- but I have already exchange the shoe two time and do not want to do it again . but for comfort I be completely satisfy .