These are great for the surf
937422
They don't get moved around on the bottom and when you reel them in they plane up toward the surface and ride above the rocks. The price is better than elsewhere.
1069125
Got these for my trip to bermuda and I have to say they look great, have a snug (no baggy) fit, and try pretty quickly once wet. My only complaint is the mesh on the inside that is a bit like wearing underwear. Maybe this is how bathing suites are with this style but all my other surfing shorts don't have them which feel a bit more comfortable. That said it does keep all the pieces in the right places.
1492608
I got these for paddleboarding, so I wanted them to be waterproof but used out of the water. The sound is good but the earbuds and "strap" design are the great part - they stay in place so there is no fiddling with them while I am trying to paddle etc.. I started using them in the gym too for the same reason - they stay in place and I don't have to worry about them.
1509684
They're sturdy and have lasted longer than other brands of flip flops.  The back elastic is helpful for keeping the shoes on and has not stretched out or broken.  They're perfect for the pool and beach but the back strap isn't enough to make them practical for playing outside or running around (but then again, they're flip flops, not tennis shoes)
1440640
I use these to swim either at the Y or in the ocean (i live in hawaii). These googles prevent water from coming in and they fit snug. The waterproofing is decent.
4084799
They're cheap enough that I now keep a pair of these in the ditch bag of my boat - it keeps the salt spray out of your eyes while your bobbing in your lifejacket waiting for pickup, and allows you to see potential rescuers if your glasses didn't stay on during your egress.  Also great for not missing those cute bikinis in the surf while you're out there yourself, and for seeing what umbrella to come back to after a bit of riptide.
4885346
I spend much of summer on/near water - these are awesome!
2512576
Fit well, I don't run in them.  I use them for surfing and water sports, I find them much more comfortable and grippy them water shoes.
437189
I got these for my son for playing in the river. These are perfect. He can easily go from water ti land with no issues. They dry fast and have a really good sole in them. They even survived a week at Cub Scout day camp.
811598
Good flippers to toddle around outside or at the beach. Not good for all day wear, but then I wouldn't expect them to be!
2467440
I bought these while living in Florida, just off the water, and did a great deal of ocean kayaking, fishing and snorkeling off of my kayak in the St. Joseph's Sound 'round Palm Harbor. In the past, I'd cut my feet to shreds on oyster beds, and was a little nervous being a mile from shore with blood in the water. We have no shortage of sharks down there, and bull sharks used my little corner of the sound as a pupping area. These shoes have taken a beating and kept my feet safe and sound. They drain quickly, don't accumulate an uncomfortable amount of sand, fit snug, I love 'em.
493524
I love these. They look nice with a skirt, jeans or a pair of shorts. They don't turn your feet orange if they get wet so they are great around the pool or to the beach. They have lasted and stayed nice for a long time as well.
4860120
This is my 3rd pair in maybe 5 years. I have bought the previous 2 pairs at my local surf shop and i have always thought they were good. They have lasted me a while even though they met their demise in unfortunate events. One while jetsking and being too adventurous causing me to get thrown off it and losing them in water. The second in a mountain biking trip where i was going too fast around a curve and ended up going over the bars into a bush and some trees. Somehow the hinge on the frame cracked a little but rather than glueing it,i chose to just get a new pair.
4168282
I broke my last pair and I'm going on a dive trip soon. These are great for being around wet surfaces, like boats. Great traction.
1656427
They are great. My daughter uses them for water polo. This is the 2nd pair that she has ordered.
461826
I buy these shirts to wear while swimming for the sun protection so I buy them a size larger than normal. I don't want the tight fit that a surfer needs. the shirts are comfortable and dry quickly.
11223
After reading reviews about a number of other water fin socks, I ended up purchasing a pair of Seavengers for me and a pair for my husband for a trip to the Galapagos and I'm glad I did.  I packed them thinking we would use them when we snorkeled and then forgot about them.  We had our Keen shoes on for the first water landing and then had to march along the shoreline in the sand.  Well, the sand came in through the gaps in our shoes and proceeded to rub our feet raw as we walked - not good.  That night my husband remembered the water fin socks and mentioned them.  The next time out we put the socks on before we put the Keens on and the problem with sand and dirt rubbing our feet was solved!  These little babies while not waterproof, are thick enough to offer a nice bit of cushion and protection from sand and dirt.  They also come up high enough on your heels to keep out the sand or what have you, as well as prevent your shoes from rubbing that area.  Other people who were grappling with sand (or similar socks that were lower on the heel than ours), were stopping to ask us what kind they were and where we got them.

I was a little worried about the sizing, but I read what other reviewers had said, along with Seavenger's sizing parameters.  For mine, I ordered the women's small.  For reference, I usually wear 8.5 medium shoes.  My feet are slim and somewhat bony and the smalls just fit for length.  They feel pretty snug when you first put them on, but they loosen a bit when they get wet.  I think they have to be snug to stay in snorkeling fins if you use them for that (I'm not much of a snorkeler, so I can't speak to how that would have worked, since I hugged the shoreline during the snorkel outing).  My husband's water fin socks are size medium.  He usually wears size 8.5 average width shoes and his feet are not fat or thin.  His socks also fit snugly with no room to spare.

These water fin socks seem pretty durable to me and they rinsed out easily and dried quickly.  They aren't designed for walking on rocks or rough areas, but with proper care should last a long time for use with snorkeling fins, walking short distances on a beach or for use as we used them, inside of trail type shoes such as Keens.