Arena Unisex Adult Powerfin Pro Swim Training Fins Men and Women Silicone Short Blade Flippers Left-Right Custom Design, Sizes 4.5-13.5

fits great for my size 10 and easy going on and off and works great

First, about the fins. I had been using TYR fins for 2 years. The TYR fins are OK, but they were hurting my toes, and I wanted something different. I bought these Arena fins. The Arena fins are slightly shorter and a little wider than my old TYR fins. The Arena fins make me go faster than the TYR fins, and I feel the kick better than with the TYR fins. With the Arena fins, I am more than 5 sec faster versus the TYR per 50 with my flutter and dolphin kicks. Because I can feel the water better, I am hoping that results in better conditioning and performance.Second, about sizing. I wear a men's US size 9. I first bought these fins men's size 8 to 9 US. I liked that the foot was snug, but the toes were too tight. Then I bought the same fin in size 9.5 to 10 US. My toes feel good, but my foot is a little too loose in the fin. I am fluctuating between the two sizes until I figure out which fits best for my foot.

Fins is just the right size for dropknee doesnt get caught on the board, alot of thrust for prone riders, best of all i dont get cramps using these fins. I wear a 10.5- 11 shoes depending on the brand, but I got the xl size fins no cramping or blisters. Fins are cherry!

I could not fit this properly so I returned it. I wanted silicone but decided to keep using my FINIS EDGE and my Churchills which fit me good. I didn't try them so cannot report on the thrust in the water, etc.

I use these for swimming at my gym. They give a lot of added boost and I can feel them helping to build leg muscles.

These Arena fins are in Men’s sizing. My fins in the photos are a USA 8-9, EU 40-41 which is a Women’s 9-10 (Men’s 8) in the United States. They’re tight when you try them on dry, but perfect once you get in the water. I am a Medium width foot. I wear an Adidas tennis shoe in women’s 10 and a 9.5 in any brand sandal. I’m a 10.5 Asics or Nike tennis shoe. They will fit an American woman size 9-10 or American man 7.5-8.5. I would size up if you’re a women’s 10-11. They’ve been worn for competitive USA Swimming training 6 days a week in a chlorine pool for a year with no fading, no deterioration of the rubber, and no stretching. I would buy these again! I had the Arena Tech Pros before I purchased these - these are slightly heavier than the Tech Pro - love them both. They are a thick, structured rubbery silicone material (not hard plastic). They are worth every penny for Arena quality. The pink is a fabulous HOT pink with the black Arena logo. They have not chipped or faded in a year!

My third pair of swim fins ordered and these are the winner. The first two were either too tight or too loose, but these were just right. I get the Goldilocks thing, but being able to wear this pair in the water and know that they are secure without tearing into the skin around your ankle or falling off when pushing off the wall is kind of a big deal. Easy to get on a take off.

Helps with swimming, look great, easy to put on and take off. Secure fit