4.5 stars, In an industry saturated with fins, meaningful innovation is hard to achieve. With the new Slip Fin, FINIS has not only done that, but may help shape the future of propulsive training in aquatics.

I’m obsessed with the SlipFins. I call them my “Happy Feet” because they’ve made me rediscover the joy of swimming again. I love how they feel like extensions of my own feet, allowing me to use my legs in a more natural way than traditional fins. They’re super comfortable and provide just the right amount of lift and propulsion. I get a great lower body workout without changing my stroke, body rotation, or cadence. Oh, and the extra speed makes me feel like a real swimmer

The technology from the slip fin pro is like no other set of fins. It mimics exactly how you should kick in the water, and really focuses on movement in both directions, it’s the first set of fins created which are completely strapless, and are perfect for any level of swimmer in the water!

We are excited for the release of the newest revolutionary product from Finis, with their new SlipFin. Having seen the prototype, this fins will be more durable, comfortable, and enhance training for athletes at all levels.

Honestly these fins are awesome. I was really surprised by how well they stay on and how they feel in the water. I'm wearing a size M and have what I'd say is a pretty average width foot, I wear a men's 9.5 shoe. The first time I used them I didn't get all the water out so they felt a little loose. Then I figured out if I fold down the tip of the fin to get the water out they stick on really well and aren't going anywhere. Super lightweight, super comfortable and just really fun to swim with. Can't recommend them enough.

Comfortable, lightweight, flexible and fast! FINIS did it again 💛🥇 incredible feelling of the water in both the up and down kick. Travel friendly is plus 🧳, you can just squeeze them in your backpack and wont take any space so you can carry them everywhere! 5 stars ⭐️⭐️⭐️⭐️⭐️

If you're on the fence about trying the FINIS SlipFin Pro, just do it.
The Fit: I measure exactly 25 CM for my instep circumference and went with the Size Medium. They fit my feet like a glove. No rubbing, no blisters, just pure comfort.
Weight & Travel: They are super lightweight and packable, making them incredibly easy to throw into a swim bag or take on a trip without weighing you down.
In the Water: Kicking feels extremely natural. Unlike bulky traditional fins, these allow you to actually feel the water, making it easy to focus on your body line and maintaining the right tempo. They are versatile enough to handle grueling, long endurance sets just as easily as high-intensity speed sets.

The Verdict: The best thing about them is that they just work. After a couple swims, they become completely intuitive and honestly just make swimming a lot more fun. Trying to go back to traditional fins now feels like a massive step backward. Highly recommend

Love mine! The strapless design feels like a true extension of my foot. The crazy thing is I didn’t “feel” like I was going faster until I touched the wall and looked at the clock. Unlike traditional fins, I can train at race-like speeds while maintaining the same technique and kick-to-arm ratio I use in competition. Total game changer.

I was hooked after 15 seconds of wearing the Slipfin. I get asked time after time again to try products, endorse gear, see what's new, etc. These are unlike anything I've ever used. After using them, I immediately went to my phone and shot a testimonial video and sent it to John Mix. I was blown away. The form fit, the comfort, the fact that the entire ankle area is wide open and free to move (think no blisters for little kids) and no rigidity issues like certain fins have. I tried my hardest to shake the fins off my feet -- and I could not. But they are so easy to slip on and then remove once you learn that all it takes is a finger to break the form fitting seal that keeps the fin comfortably yet snugly in place. I'm a huge fan of the Slipfin - and I'm willingly telling others about it. Well done Finis! You have a hit on your hands! Mike Koleber, Nitro Swimming @Coachmikenitro

As a distance freestyler I use my feet to drive my hips and leave the propulsion to my upper body and my rotation. When I train with heavier fins requiring more energy and kick rate I experience a disruption in my technique and focus. They put my brain into my feet instead of leaving it in my head where it belongs.

Using SlipFin was a return to a profoundly natural feel after 25 years of the arms race in training fin technology. Because it feels so natural and is so much more manageable than anything else I’ve ever used I put them on every chance I get - I’ve even used them for a full practice.

If you want a fin that connects your toes to your fingertips I can’t recommend it enough!

I have never enjoyed fins before trying on these slip fins. The opening of the fin fits nicely around the instep of my foot (not the back of the foot) which allows for a very comfortable fit and nothing rubbing on my heel. The material it's made of is slippery and soft. Just slip it on, squeeze out the air/water and kick away. I also used to get foot cramps and blisters from wearing fins BUT I was pleasantly surprised I did not get blisters, didn't have to wear socks to protect my feet AND no cramps!! These are also lightweight, so travel will be easy!!! I am so glad I bought them.

Honestly this product is something special, I’ve never experienced anything like it. The way it feels, and the speed I can generate is extraordinary.

We tried the SlipFin Pro on approximately 15 swimmers; half masters, half club high school-aged athletes. Most really liked the SlipFin once they were in the correct size. I believe the SlipFins will be used as kick developers. Very innovative and fun!

Perfect fins. Easy to use, light on the feet
Top fins. The best.

My foot measures 26CM so I am a size Medium. I love the Slipfins, they were a little hard to put on the first few times and I was not getting my foot in deep enough. Within a few times I have perfected how to put them on and I love the comfort and performance. I also ordered the size large, they are easier to put on, my foot does not go as deep into the pocket, but for easy freestyle and longer swims I will use the large. So I would say the fit is pretty universal.

I am new to swimming and swam my first 1k straight yesterday with the slipsfins on. It makes getting into swimming SO much more fun and less frustrating! I can fully focus on my technique while enjoying a natural feel of propulsion. They truly make a beginner feel like they belong into water! I love them!

The past month, I have a couple of swim camps with over 100 swimmers, plus sharing with some of my swim coaching friends. The comments started out by they feel weird, then these fins feel awesome. They are light and my feet have more flow with the SLIPFIN. I can't believe they work with the breaststroke kick and going fast in and out the wall. It is a great product, no more sores on my feet!

These are a great addition to my equipment bag.
Pros: medium propulsion, natural foot position, natural kick rhythm
Con: getting them on while in the water. It took a little practice and breath holding to get them on the first few times. They take 2 hands, so if you can’t touch the bottom, you might want to sit on the side to put them on. I used a snorkel.
Fit: These are different from any other fin fit. They are super stretchy and are snug on the arch only. They have extra room in the toe, so just squeeze out the air or water. I am now hyper-aware if my foot position and toe point while kicking.
Propulsion: They almost feel a little floppy at first, but the drive power is good. These aren’t going to slow down a kick rhythm by moving a ton of water. For crawl, I was able to keep my turnover quick with a normal kick rhythm and really work on kick efficiency. I especially liked this for keeping a good butterfly rhythm and stroke rate.

These fins are different but great! The change is noticeable in my kicking and swimming. I am so glad I made this purchase!

What a fantastic new product from Finis! The SlipFin are super innovative. Very comfortable, compact and the floatation factor helps elevate your legs while swimming!

I have already bought a couple pairs for gifts for swimmers in my family, and when I'm at my local Aquatics center, I get lots of questions and I have handed my SlipFins to other swimmers for a quick demo.

Again, SlipFins are a home run for Finis! I will be packing the fins for my upcoming trip to Indonesia and Thailand!

I saw these on social media and was intrugued to try since my speedo fins were causing my feet rubbing and heals become red with extended usage. Slipping on these are a breeze in the pool. I feel like I get a better body position and leg workout.

Other swimmers wanted to try mine, and they said similar that it feels like an extension of your foot, rather than a piece of equipment. Thanks for making an awesome product and so much easier to carry in the swim bag!

Finally ❕Innovative silicone technology done right - extremely comfortable, user friendly and so much fun 🪇 Excellent for anyone who has ankle issues or sensitive heels. Thank you Finis for making my swim sessions even more enjoyable 💕

I love these fins from Finis based on a reconception eliminating the strap around the back of the foot. They work great and stay on reliably (see below). I will take these on trips, unlike the other fins I have, because they are light weight and small packing volume. I do the same things with a Finis snorkel with a removable clasp and strap and use that for kicking. Also, they are just the right size for fins; they do a good job of enhancing the kick without being overwhelming and unrealistical when you return to swimming without them.

The first time I used them I struggled to get them on. I put them on in the water and it's important to squeeze out the water at the front of the fins (water is incompressible) both to get them on and to get them to stay on. The next time I again put them on in the water and that was much faster. In both cases they stayed on securely for long sets (2000 or more yards) and sprint sets. Squeeze that water out!

I always had problems with blisters before, but no more. So comfortable and I really feel I'm going faster. I use my ankles more too. Great invention!!

I like them! They feel a little floppy but I like how they fit in my swim bag so I’m going to keep them. Hey finis, make them in an XS, my kid wants them too but he’s too small :)

These are superb fins! I was a little worried when they arrived I tried putting them on at home and thought shoot it will take me forever to get them on during swim practice. Got in the pool with them, no worries they slipped right on and off I went swimming laps with them. They fit great, feel great and less drag on my feet while swimming. No more bumping the lane lines and the heal of my flipper coming off. Highly recommend.

The fins are as advertised, providing a much more natural feel (and easier on the legs and joints); my legs feel great, even after a long set! It took a few days to perfect the desired snug fit. The fins do seem to slip a bit while swimming backstroke. Overall worth the money.

Usually don’t like wearing fins, but these feel very natural and don’t cause any blisters or ankle pain. Only downside is they start to get loose after about 500m and require adjusting to squeeze out water that has snuck in. Have size 11 (US) shoe size and bought size large.

Fast response and delivery by Finis. The flipper looks great and light. Can't wait to try.

Love the concept and purchased a Large. Unfortunately they were too small. I wear a size 12, 4W shoe and have very high arches. Hoping you introduce XL in the future.

If you are a competitive or Masters swimmer who has dealt with blisters, stiff ankles, heavy rubber, or disrupted stroke timing, SlipFin Pro is a total game-changer. They are officially my favorite training gear.

They are incredibly soft and comfortable, with no rubbing or pinching, and they feel like a natural extension of your foot. You still get added lift and propulsion without throwing off your kick rhythm, body line, or arm-to-kick timing.

Once you get the hang of slipping them on and squeezing out the air or water, they stay securely in place, even during aggressive walls and high-tempo kicking. They are also compact, flexible, and perfect for travel.

FINIS has completely broken the mold with this strapless design. Highly, highly recommended!

Loving my Slip Fins! It took me a few swims to really figure out how to properly wear and remove them, but once on, they feel like a natural extension of my feet. The fins give you enough added propulsion without disrupting or distorting your kick and stroke cycle. And they are soft and compact, so they take up way less space in my gear back.

I hoped this would be an amazing product, as all products from Finis are, and they far exceeded my expectations. They are super comfortable and a great addition to my swing gear. I was a little bit nervous about the fit and feel. As it turns out I had nothing to be nervous about. Encourage anyone who enjoys swimming for fitness to purchase these.

Wow! Wish we had these for the last 30 years! They are an absolute game changer and I love the fact that they allow for a natural kick! Just incredible! Truly feels like you are barefoot 🦶

From the moment I slipped these on, I knew. And once I swam, the deal was sealed. These are my forever fins. No cramping, just ease and power. Lightweight, comfortable and full ankle flexion assure that these fins work to improve my swim, not deter it.

I was fortunate to be a member of a masters that demoed two versions of the prototypes of the Slipfin Pro, and while I liked them both, Finis clearly got them right in the final version. I struggle to wear fins (other than the PDFs for breaststroke) since I have a weak kick, causing other fins to sink and create drag, and cramp easily. The Slipfin solves both: they are lightweight and buoyant, short and highly flexible. They are the only fin I can use for more than 50-100 yards of freestyle and I've worn them for 200-400 yards with just a week of use. You can wear them for breaststroke but they don't provide any propulsion, so I keep the PDFs for that and Slipfins for everything else. Takes a minute to get them on, otherwise I can't think of anything negative. Feet may feel a little tired at first from the tightness but that gets better during use.

I wear a size M or L (European standard). I red and saw the instructions before... I'm a former pro swimmer,now 60 YO. I decided to buy and ordered M. All fits - wearing, feeling during swimming (really free legs, it helps enormously). Delivery, quality rock! Highly recommend 🙏 Thank you so much 🙏

I bought the Slipfin Pro to alleviate a corn around my Achilles using Finis Edge fins.
The fins are fun to use and very easy on the foot. They engage my glutes more than Edge fins (which engage my hips more). The reason for this seems to the Slipfins' greater buoyancy, forcing me to work a little hard to keep my legs and feet from breaking the surface.
I do not generate as much speed with the Slipfins as I do with Edge. This seems to be a result of their smaller overall "footprint" and less "whip" generated from the hip. These things don't bother me, as I feel I'm building better engagement below the waist, something I can get lazy about as I concentrate so much on strokes.
Other comments:
1) Very lightweight and compact.
2) Easy on and off.
3) "Coolness" factor.
4) VERY easy on toenails and plenty of toe-box room (I wear EEE).
5) Heels are liberated from tight straps.
6) More expensive than other fins but innovative and fun to use.

So far I like them. Lightest fins I’ve ever used & helps flex my feet in the right position. Still getting used to them. Showing them around to my swim friends!