Without the x bass system engaged, it lacks bass, and with, it seems a bit too boomy, overwhelming the clarity of the mids and highs, and muddying the mix. Remember about space, which will be needed to fit the protruded shoes. ???????? I guess you get what you pay for. The left shoe was clearly made differently, although marked as the same size. Im so sad because i had saved my money up for this :( I grabbed these even though they won?t fit for another year because they were on sale for $10 and I?m so glad I did! its a FLIP FLOP! I would?ve given 5 stars but beings the sizes run small I had to give four stars. I have very flat feet, and they help and absorb some of the shock when walking. ), and Im sure this will enable me to wear it under my lighter colored tops without it being visible.