These sandals were brilliant and I am pleased to report that I experienced no friction and no blisters. It was very easy to assemble (about 15 minutes) and came with an allen key, small wrench, and some extra screws, which I appreciate. I was looking for a full sole (vs split sole) because I read that full soles make beginners feet work harder to achieve a nice arch, and therefore strengthen the feet. Keep in mind that these arent audiophile headphones, they are very fun to listen to, pack a punch, very clear and it is mostly intended for bass lovers while also keeping amazing clarity. these has become my go to sub $100 IEM. I suspect I dont wear it as tight as others or as tight as recommended but I am more about the shape and workout efforts rather than trying to get to a 22 inch waist or sometime equally ridiculous. Perfect fit, heavy duty, great price "So" as "-oh". Looks like its built with quality materials. Its not perfect but 100% better than the G30 edge.