These booties stretch out way too quickly although honestly they shouldn't stretch out much at all. So after about an hour of swimming they start to work their way through the opening near the toe of my Finis fins. Then, so as not to lose them in the water, I pull them through the toe opening and leave them on the deck. Then once again, I'm swimming without booties and wondering if I'll now be dealing with the fins scraping against my feet. Before you say, get a smaller size, I've been using the medium for years and now after wearing new ones for a month, they lose shape. I bought two pairs and this happened with both. Idk, have the materials in neoprene gotten more expensive? Has the price of latex or rubber gone up in price so there is less of it to hold its shape in this product? Did Finis switch material suppliers? As you can see from my review, I'm angry about the diminished quality of these footbooties.

These booties are awesome for keeping my feet from getting torn up by fins. Way more comfortable than going without! Only thing is they stay wet for a while after practice, so I have to hang them up right away. Other than that, they do exactly what I need.