when I first get these sandal , I hate they . they be hard on the bottom and leave I red mark on my foot . BUT IT 's OKAY . it be worth the wait . wear they for about a week or two and it will be smooth sailing from there . I try to wear these whenever I can because they be so much more comfortable than shoe . these sandal be perfect for summer . I also have very sweaty foot . Whenever I wear my old sandal , the bottom would smell and feel sticky the end of the day . however , the problem do not seem to come up anymore . smell and sticky feeling free . one thing I do not like be that although you can get they wet , I try not to . the water tend to change the color of you sandal into a dark old brown look color .