I use these fins all the time when swimming in the pool or the sea and they work very well. My only complaint is sometimes the buckle comes loose when in storage and has to be reattached, but no problem while swimming. They're compact and good for travel. 5 stars

I'm a beginner, but I've been using these fins for a few weeks now and although I like the feeling of wearing fins (very zippy), they just aren't very comfortable to me. I have size 11 feet, which is right between the size range listed. But if I cinch the strap on tight enough to stay on my foot, I end up getting a sore spot on the outside of my feet, just below the base of my small toe. If it is any looser, the strap falls off (yes, even mid-lap).
Maybe my feet are too wide for them, so your results may vary. 3 stars

I love the fins, but I bought the large size, which is said to fit 10-13 size feet (mine are 10 1/2). But they are WAY too big, and the foot opening in the front is so wide on this size that my foot sticks out too far when they are cinched tight enough. I'm having to go with the mediums to go for a better fit. 4 stars

These fins fit better than others I have tried and that is a big deal. However, their shape does not seem to enhance gliding or speed the way others do. 4 stars

I love these fins! This is my first time getting fins. I purchased them to give my laps some variety. These fins are definately working my legs better than regular swimming. I feel my legs getting tighter after each time I use them and have noticed more definition and .... yeah! baby! ...less fat!!!

Best of all is the fit. The backs adjust easily, therefore you don't have to worry about them being to short or too long for your feet. 5 stars