Helps prevent blistering and slippage while using the flippers

I love these!  I was so sad when the medium has been out of stock for a few weeks!  But I read on of the review that she's a size medium according to the sizing chart but the small is just fine.  I wear a size 7 shoes and the small in this fit me perfectly!!

They are perfect for use under the fin, it make it easy to get them on and off. They also help keep my feet warm at this time of the year. They would be great for most any kinds of water sports. I highly recomend them.

I bought these for my Dad who was getting blisters with his fins.  These are working great for him.

expected a more rigid sock that would stay in place...these seem to droop down past ankle

Before these socks my feet were being eaten alive by my fins.  They were rubbed raw in spots and blistered, not conducive to swimming.  Now after havaing these for two weeks  my feet are healed and pain free, and I can use my fins as long as my legs hold out. Yea!