there be plenty of review here explain how awesome these Keen 's be . I agree . these be the most comfortable shoe I have ever worn . wear they exclusively for a very active week-long trip to Kauai and they be perfect . keep my foot cool and comfortable and provide great support for hike and walk . I only have two criticism : they get smelly very quickly and the sole be not as grippy as expect . walk for a day or two in these and they will develop pretty strong foot odor . scrub they with soap and water get rid of it , but it return pretty quickly . also , I expect the black rubber tread to have good grip on rock and such . they be okay , but tend to slide more than expect . perhaps the sole be make to be more durable and be a little too hard to get good traction . they be great for dirt trail or on concrete or asphalt . I do not trust they on wet rock or slick surface .