FOR ANYONE NEEDING TO WALK ON SLIPPERY, SHARP ROCKS OR any ROUGH WATER BOTTOM & WATER BANK OF ANY KIND, THIS SHOE IS EXCELLENT.
Because this water shoe is so excellent at its basic requirements, I went up to 5 stars instead of down to 4.
--The tread is totally great!  Ive had many water shoes. I bought a worthless Cabella water shoe last river trip (not a pool sock) and the tread was 85 % demolished in 3 days and worthless. I just returned from hiking a mountain river daily for weeks and these soles don't have one nick!
--i love they dry quicker than any other water shoe Ive ever had.
--Unlike every other water shoe Ive had (including Niki's) the inner sole has never slipped.
--I worried about this shoe being a tad too large--but it grips my foot perfectly while the extra room, thanks to the clever angle, allow for a quick on & off--which is also just great with a wet shoe.
--It also looks good--which tho the least of my needs, pleases me.

The One Con:
--the tread has deep, diamond holes of many sizes, and actually catches one perfect fitting rock or pebble inside nearly every hole. This does not affect the shoes great function at all--but those rocks can scratch any indoor floor you might walk on. I just took 20 pebbles out of holes in the bottom of each sole.

The tread is so absolutely great for ocean, river & rough trail walking--but needs a little rubber nub  inside each hole to prevent the huge collection of gravel it picks up. Rock removal takes just few minutes.