I agree with the other reviewer - the top strap is too loose. This causes the material to rub against the top of my foot when walking and hurts after a while due to the patent material edges rubbing against my skin (this is just the upper strap part, whereas the lower part at the forefoot is snug and therefore does not rub). These would be perfect if they came in leather rather than synthetic (i.e. if the upper was more soft and supple) and if the top strap was more snug or adjustable.