Like New Birkenstock Florida sandal. Worn once, did not feel right on my foot, I have extremely flat feet. Still on the Birkenstock website, they state "We find the trim three straps of the Florida make this the most secure slip-on style in the Birkenstock line. The strap closest to the ankle comes high enough to keep the sandal close to the foot with each step yet allows for stepping in with ease. Use them as slippers by your bed, pair them with fun printed socks, or show off that new pedicure. With its additional foam layer, the soft footbed offers extra comfort and pampers feet all day long. Oiled leather can be recognized by its untreated surface. Birkenstock purposely does not treat surface grains and other characteristic features. Birkenstock uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material."