everyone I know who have these absolutely love they . for whatever reason , however , I have not be able to find a size that do not slide off of my foot ... if it be too small , it force my heel off the back , if it be too big , my heel fall off the back , if it be just right , my heel still fall off the back when I move . people rave about these thing , but they do not work for I -lrb- for context , I use they for a backpacking trip through shenandoah VA. . . I could not wear they to hike the stream because they come off right away . they have be permanently demote to my stationary bathing shoe -rrb-