These are $5 less expensive on Amazon than on the Aqua Sphere website. Ive only worn these once so far, and had no difficulty putting them on. Im a 7-7-1/2 shoe size so I ordered the small. So cushiony with great arch support. I used them today for shallow and deep water walking at the Y pool. I love their buoyancy in the water, as it adds resistance to my workout.  After that, I kept them on to shower and walk around the locker room. No slippage, felt like walking on air. I will never go back to closed toe water shoes. Already ordered another pair. Wish they were available in my size in black.  Highly recommend, especially for the price.