I purchased these sandals for playing golf when weather is too hot for golf shoes.  Before using, I water-proofed them to protect from moisture on he grass.  They are very comfortable.  I have played several rounds, walking all 18 holes.  (five miles per round of golf)  Uppers are 100% high quality leather.  Linings of the upper straps are as &#34;glove-leather&#34; soft.  (Golfers be fore-warned:  since they are spike-less they  cannot be worn on courses that have rugged, uneven ground.)  They are so comfortable, I bought another pair (prettier style) of the Clark's Unstructured for everyday wear.