The build quality also makes a good, the Teva comparable impression. The Velcro straps held, even after I've run with sandals through ankle-deep mud, rock solid. The profile of pretty solid soles has also proven ideal and always offered a good grip. Another not to be underestimated advantage of this sandals is that they no unpleasant odor developed after several weeks of intensive use, while others sandals after a few days exude an irresistible fragrance. I suspect, therefore, that the insoles are anti-bacterial treatment, although this is not specifically mentioned in the product description.
Finally, a tip for the perfect fit: the first Customizing you should adjust the heel strap so that the heel also with a strong pressure from behind against the sole nor completely remains in the footbed, only then tighten the other two straps taut - while running the seat becomes loose again a little bit.
Oh yes: the sandals are rather large. Order less in doubt 1/2 to 1 size. At first I had a couple in my regular size, that actually turned out a little too big. After me this stolen (!) (Sure was possibly would not have happened without antibacterial sole. However, a disadvantage? ;-), I ordered another pair in the next smaller size that fits perfectly now at least.