I have have these sandal for about a year . my brother swear by they and be on he second pair . first , they be very comfortable , and you forget you have they on . I like the closed toe design , which help keep stone and stick from get in under you foot . that say , I will never buy another pair of these . why ? they smell more than any other sandal I have worn . I be 60 + and have have my share of sandal . these be the worst regard smell . on a recent road trip w \/ my wife and brother , if one of we take we Keens off in the car , the window go down and complaint go up ! we laugh about it , but it be irritating nonetheless . sure , wash they help , for awhile . depend on how often you wear they , you may need to wash they weekly . the ` anti-microbial ' treatment of the sole be a laugh . I have have Merrell 's that have never have this problem . and my leather-insoled sandal never smell . I have read so many other complaint about the smell of these sandal , that I know it be a problem . and I do not think we need to hear about washing\/powdering we foot as a solution . the solution for I be to look for a different brand of sandal .