CHACO please bring back the tried and True perfect arch support! Updated at 4 monthsThe structure of the shoe collapsed while I was away from the house. As other reviewers commented, the fit is quite small. I will update this review in the Fall when I start to wear them but for now, I can rest easy knowing I have found a comfortable pair of shoes. Snug at first, I think they get roomier inside because the wooly part compresses (dont think the outside stretches with wear). The whole thing is stretchy so I should have got a medium. Mainly in order of preference…1:MT5 : good for : Mastering, Monitoring and Listening. Im not a germ-o-phobe, but even I often imagine what kind of fluids are on the surfaces around the gym, not to mention spongy surfaces like a yoga mat and of course, the barbell pad. (I wanted to put four casters on the base but then I found a ready-to-use square dolly at a lover price than the wheels only, so I used it instead). I plan to purchase the beige pair and maybe the red as well.