Review on Long Floating Fins For Swimming And Snorkeling By FINIS – Use Size Chart For Accurate Sizing by David Encarnacion

About me: I swim 3-4 times a week and use fins as part of the drill.Sizing this fins can be challenging and hit or miss depending on your feet shape and length. So, beware. I wasn't expecting it to fit like a sports shoe especially given the size range but I thought I point out the shape and length of the slot did not fit me at all.Size: I wear shoes of size US 9. So, I bought 9-11 thinking it'd be good considering many reviewers recommending you to buy one size larger. But when I received it, I had to put quite a lot of force to squeeze my foot into each fins.Shape of the slot - Note that most feet is wider at the toes than heel, but the shape of the slot you wear into widens too little at the front. So, there's a tight squeeze at the toe area. When I try to stand up, the front part of my foot is very tight to the extent of being painful and you can't walk even few steps. I know the fins are not used for walking, so that's fine but I didn't expect it'd be painful. So now, I only put on the fins in the water.Length of slot - While the back part around my ankle has a snug fit, my toes protruded out quite a bit. When you stand up on land, it doesn't matter because the traction from the rubber prevents your feet from moving much. But when you're in water, the water allows your feet to move forward somewhat and as result my toes protrude even further out to the extent there's abrasion above my toes.Thinking I bought the wrong size, I bought another larger one 11-13. But guess what? The length is ok, but now, the cavity is a little too big and my foot can move inside and there is no snug around my ankle. I can still swim with it but too loose.As a fin, it works well and offers great flexibility and propulsion. Unfortunately, the fit may not suit everyone.