Having worked in the Outdoor gear industry for years, I have worn just about every technical sandal out there. Keens were new to me and I decided to give them a shot. I read up on Hemp fiber and its durability/strength before I bought these. Everything I read came to the same conclusion. Exceptional strength, comfort and durability! These shoes fit perfectly, they are comfortable, have excellent grip and are very well made. Stress points a re double and triple tack stitched. I have no doubt they will last a long time. I might buy a coupld emore pair before they are gone!