I have have this shoe for a couple of month and have be use it this summer in the humid east coast , desert of New Mexico , and tropics of Hawaii . it be a great sandal and alternative to regular shoe if you know the caveat . this be my opinion : SIZING : I normally wear 9.5 W shoe . keen be fit to be snug with no sloppiness of a traditional sandal . I buy first a 9.5 then as a backup a 10 because I do not want the hassel of return it . I think at first the 9.5 be too snug . I be wrong . after a month of break in , the shoe fit like a glove . my recommendation however be , if you want a sandal to replace a hike shoe and you plan to be very active with it , buy you regular shoe size and let it break in and mold to you foot . my toe be very close to the end of the shoe but not touch . I think I would be jam my toe after awhile . that never happen . the shoe be snug and my foot do not move around . if on the other hand , you want a more traditional , casual , looser fitting sandal for walk around the mall but a closed toe to prevent the occasional toe jam , buy a half size up . close toe : I be not use to it in a sandal . at first I think the snug fit would start to bug I because I can occasionally feel the top of my toe touch the top of the shoe . it have not . as you break in the shoe you toe get a smidgen more room , but not sloppy more room . temperature : this sandal be more like a hike shoe with a lot of ventilation slit . you foot be very well cover and protect with this sandal . however , this make you foot warmer than most sandal and perspire more , hence the comment of foot odor over a period of time . still cooler than a hike shoe but warmer than the open toe sandal . this sandal be useable in cooler season like early spring and late fall know it could keep you foot warmer than other sandal type . protection : can climb and walk on nearly any terrain with confidence . only real caution be climb volcanic rock and jam you foot into crevasse . the sandal still expose some of you skin . debris : Dirt , sand , twig , seed , etc. that get in the sandal stay there until you take off you sandal . walk into a fast move stream can clear it out without take it off . WASHABLE : all synthetic and no leather so I have wash they with no concern . do dry slower than most , so if you wash they at night and want they dry in the morning , put they under a fan at low setting overnight to dry it out . I have not yet put they in the dryer , but seem at low temperature it should be ok . look : kinda look like I go to Spiderman to make I a pair of sandal . it have that very busy , webbing , stringy look . wife 's immediate first reaction be : `` that be really ugly ! '' I probably will not wear these to any wedding in the near future . however she be get use to they . besides , attractive sandal will not be on my mind when I be suffer from a painful or cut-up foot ... FYI I have a nice pair of leather Ecco sandal for casual social event ... but those will never see a intentional salt water immersion no matter what Ecco 's ad say . OVERALL : these be a extremely comfortable , all purpose sandal if you only want to bring along one pair of shoe to hike , slog in mud , run , dive into the surf , climb rock , traverse a stream , or just walk around the mall and to be able to just wash they out at night and start anew in the morning .