"Merrell = specialist in outdoor shoes." These sandals are suitable for hiking season, good adhesion to the ground using a sole with cleats: no slipping on gravel roads, no friction or overheating since NORMALLY must provide a size above that usually taken when one has to take long walks in the summer, because feet swell with heat and during exercise, they must not be compressed. For my part, I chose to order a 37 instead of the usual 36 because I found they shod small enough, I was obliged to return another similar model Merrell sandal in size 36. The apprehension that the fasteners of velcro ankle would not hold and that we should readjust constantly proved to be unnecessary, but it was the "test" to find out. I recommend for people who have quite thin legs because these sandals are not too adjustable straps at the loop / clip. ATTENTION to the description: - top and leather lining ... Please read the product description in detail at the bottom of the page, ie = * polyester and nylon interior material outside material * nylon and nubuck leather. I thought they were all leather, to prevent sweating. In short, I have adopted the same, these two-tone sandals are nice (rather than red plum and red pulling a red / orange - I prefer), durable and practical, I appreciate that they are open, although for ventilation feet and tan too. Is the cost, we must buy them at the right time, because Amazon offers price changes (they are now cheaper), but when the holidays become clearer, no time to wait, although fast delivery, must be taken into account availability. Amazon thank you.