They both said Mens 13. They will go in a river or a stream but then will be a bit rubby on the bottom of your foot. Also, not for narrow feet. Its very sturdy since it has 3 spots where you screw it directly onto the wall. I?m in the comfort of my home! They were tired, because I was on them all day, but I had no blisters, and they were not in pain. I regret not taking a photo but I was aggravated ?? Needed a charger, wrong item. I am very light, use it everyday to walk around my house, wash it once about every four weeks. I dont have large hands but the way it is designed there is a place for all your fingers to sit comfortably on.