Find the Perfect Fins for Your Diving Style
I’ve been teaching scuba for over 20 years now, and I’ve met thousands of divers. No piece of diving equipment is more controversial or creates as much discussion as scuba diving fins. Every diver has their own opinion, and the choice of diving fins is huge. Walk into any dive shop, and you’re faced with walls of fins in every color, shape, and price point.
Choosing the right fin can make your diving so much easier, while the wrong one can turn a beautiful dive into a leg-cramping nightmare. Plus, good fins will last you a decade or more if you take care of them, so this isn’t a decision you’ll be making again anytime soon.
Apart from the dozens of different models that I have tested, tried, or had to use for some reason, I have only owned 3 pairs of diving fins myself. So, that’s an average of about 7 years and roughly 2,000 dives per pair!
Let me share what I’ve learned from my own diving and from chatting with other instructors and divemasters about what actually matters when choosing fins.
Types of Fins: What’s Actually Out There
Open-Heel vs Full-Foot Fins
Open-heel fins are worn with neoprene booties and have adjustable straps at the back. I use open-heel fins for probably 95% of my diving. The booties keep your feet warm, protect them when you’re walking on rocky shores or boat ladders, and the straps mean you can adjust the fit.
One thing I tell my students: if you dive anywhere that’s not the tropics, or if you do shore dives, get open-heel fins. The foot protection alone is worth it.
Full-foot fins are like slippers—your whole foot goes in, no booties needed. These are great for warm-water diving from boats. They’re lighter, cheaper, and more compact for travel.
They offer no thermal protection, and you’ll be walking around barefoot on a dive boat or beach. The fit is more critical. If the fit is too loose, they can give you blisters. If they are too tight, you can get cramped.
Split Fins vs Full Blade Fins
This is where it gets interesting. If you think fins in general create a lot of discussion, the debate gets really heated when it comes to split fins.
Split fins have a slit down the middle that creates two separate blades. The design lets water flow through the split, which is supposed to reduce resistance and increase efficiency.
Some divers swear by them. Some hate them. I’ve heard instructors say, “No split fins on this boat!” The efficiency is debatable, so if you want to avoid discussions, don’t buy split fins.
Reality is that they’re easier on the legs for long dives. If you have knee or ankle issues, split fins might keep you diving. They’re designed for using flutter kicks, which means they’re not great for frog kicks or backing up.
Efficiency – Stiff vs Flexible
A lot of the ‘fin discussion’ is about which fins are “most efficient,” but the science is pretty clear—it matters way less than you think. The US Navy ran a four-year study testing different fins on SEAL team members. Every single participant—all 200 of them—believed the longest, stiffest fins were the most efficient. However, the oxygen consumption data proved them completely wrong. The smaller, more flexible fins actually used 25% less energy.
What really matters is your kick technique. It has much more impact on efficiency than your fin choice. Even the most expensive and ‘efficient’ fin won’t get you anywhere if kick technique is wrong. I won’t go into teaching proper finning style here, but what I’ve found is that medium-sized and medium-stiff fins (not split fins) work best for learning proper finning. Stiff enough to provide feedback for proper kicking style, but forgiving enough to avoid exhaustion.
What to Actually Look For
Blade Stiffness and Material
Stiffer blades give you more power per kick but require more effort. Softer, more flexible blades are easier to kick but give you less thrust. Most recreational fins fall somewhere in the middle.
Materials vary between mono-material and composite fins. Mono-material fins are made entirely from rubber or plastic throughout. They’re generally more durable because there are no weak points where different materials join. Composite fins combine stiff and flexible materials in different parts of the blade for better performance, but that junction creates a weak spot where the materials meet. That’s typically where composite fins fail.
Only a few manufacturers have their production quality dialed in well enough for composite fins to hold up long-term. I used Cressi composite fins for about seven years before they started splitting at the material joints. They worked great until then, but that failure point is something to watch for with composite designs.
Foot Pocket Fit
This is huge, especially for full-foot fins. If it doesn’t fit right, you’ll get blisters, hot spots, or the fin will feel sloppy and inefficient.
For open-heel fins, bring your booties when you try them on. The fin should fit snugly but not squeeze your foot. You should see a bit of your bootie sticking out the back. Too loose and the fin will slip around. Too tight and your foot will go numb after 20 minutes.
Blade Length and Surface Area
Longer blades generally give you more power but require more effort and can be harder to maneuver in tight spaces. Some freediving fins have extremely long blades. These are efficient when freediving using a flutter kick, but that is all you can do with them.
Shorter blades are easier to use and better for travel, but they simply give you less power. They are easier in tight spaces and for precise maneuvering. That’s why most tech divers and photographers prefer shorter blades.
Weight and Buoyancy
Weight is important, but what matters more is buoyancy. It’s one of the most important considerations when choosing your fins.
Fins that are slightly buoyant are good because your legs normally have a tendency to sink. But if your fins are too buoyant, your legs float up and throw off your trim. Of course, you also need to consider your boots and suit. Thick neoprene boots are buoyant, so you may need heavier fins to compensate for that.
This also is the case for your wetsuit and—in extreme cases—for your drysuit. Scubapro Jet Fins are famously heavy and negative and popular with divers that dive in drysuits. The Go Sports are slightly negative. Most split fins are pretty neutral or even slightly positive. It’s something to consider based on your buoyancy characteristics.
Straps: Adjustable vs Spring
Most fins come with adjustable rubber straps and buckles. They work fine and can be adjusted before or during a dive. Getting your fins on, and especially taking them off, can be a bit of a struggle. Some brands have special ‘quick-release buckles’ to simplify taking the fins off. They work great, but they’re also the first part of your fins to break. The buckles are sold separately and can be replaced.
More and more fins feature elastic straps. They use metal springs or simple rubber bands. They’re easier to get on and off, but they cannot be adjusted. They are surprisingly durable (especially the metal springs) and can be easily replaced if needed.
Matching Fins to Your Diving
Recreational Diving
For most recreational diving—reef dives, wreck dives, the occasional drift dive—you want fins that are comfortable and efficient without being exhausting. Medium stiffness full fins or split fins work great. Mares Quattros, Scubapro Go Sports, or Deep 6 Eddy fins are all popular choices among recreational divers.
Technical Diving
Tech divers need precise control for skills like frog kicks, back kicks, and helicopter turns. Stiffer paddle fins are the standard. Scubapro Jets, Hollis F1s, or Apeks RK3s are common. They’re heavy, powerful, and give you the control you need for tight spaces and complex kicks.
Underwater Photography
Photographers need to hold position while they frame shots. This means lots of small, precise movements. Frog kicks, back kicks, minimal disturbance of the bottom. Stiffer paddle fins are better here. The ability to make tiny adjustments without kicking up silt is crucial.
Strong Currents vs Calm Waters
If you dive in places with regular current, you need fins with good power and stiffness. Medium to stiff fins give you the thrust to occasionally swim against a strong current. Good options for current diving include the Mares Avanti Quattro Plus, Apeks RK3, and Scubapro Seawing Nova—all have the power you need when conditions get challenging.
For calm water diving—lakes, protected bays, warm tropical sites with no current—you have more options. Softer, more flexible fins work great and are easier on your legs. Split fins are also fine in calm conditions since you don’t need the raw power, and they’re very efficient for relaxed cruising. For calm water, consider the Scubapro Go Sport, Atomic Aquatics Split Fins, or Tusa Hyflex Switch—they’ll keep you comfortable during long, easy dives.
Travel Considerations
If you travel a lot and want to pack fins in carry-on, size matters. Fins over about 60 cm probably won’t fit in most carry-on bags or backpacks.
Good travel fin options include Scubapro Go Travel, Oceanic Accel, or Aqualung Storm. All are under 21 inches and lightweight. They’re not as powerful as full-size fins, but they’re way more convenient.
When you are diving in calm tropical waters from boats and don’t need maximum power, consider using full-foot fins. They are by far the easiest fins to pack. Cressi Gara Modular, Cressi Reaction Pro, and Mares Avanti Superchannel Full Foot are very light and still relatively stiff.
Getting the Right Fit
How Fins Should Fit
For open-heel fins: wear your booties and make sure the foot pocket is snug but not painful. You should be able to wiggle your toes a bit. The fin shouldn’t slide around on your foot when you kick.
For full-foot fins: they should fit like a snug shoe. Not tight enough to cut off circulation, but not loose enough to slip. Try them with wet feet if possible—fins can feel different wet than dry.
Common Sizing Mistakes
The biggest mistake is buying fins without trying them with booties first. Bootie thickness varies. A 3mm bootie and a 7mm bootie require different fin sizes.
Another mistake is assuming your shoe size matches fin size. It doesn’t always. Sizing varies between manufacturers. Always try them on.
And don’t buy fins that are uncomfortable in the shop thinking they’ll break in. They won’t. Underwater, any pressure points or hot spots will get worse, not better.
What You’ll Pay
Budget-Friendly Options ($50-$100)
You can get very decent fins in this range. Scubapro Go Sports are around $100 and work great for beginners and recreational divers. Cressi Reaction Pros are affordable full-foot fins. At this price point, you’re getting solid, functional fins without fancy features.
These fins will last for years if you take care of them. Rinse them after every dive, keep them out of direct sun, and they’ll serve you well.
Mid-Range Fins ($100-$200)
This is where most recreational divers land. Mares Quattros run about $150-180. You get better materials, better construction, and usually better performance. Features like spring straps, better blade designs, and more comfortable foot pockets show up here. These fins will handle most diving situations well.
Premium Fins ($200+)
Premium fins from companies like Atomic Aquatics or high-end Force Fins can cost $300 or more. You’re paying for advanced materials, specialized designs, and premium features.
Are they worth it? Depends on how much you dive. If you’re diving 50+ times a year, maybe. For most recreational divers, mid-range fins offer better value. I’ve never felt limited by my $150 Quattros.
Taking Care of Your Fins
Maintenance is simple. Rinse your fins in fresh water after every dive. Salt and chlorine will degrade the materials over time. Most importantly, don’t leave them in direct sunlight—UV breaks down rubber and plastic. Store them flat or hanging, not bent.
Check your straps regularly for cracks or wear. Replace them before they break. Spring straps rarely fail, but rubber straps will eventually give out. Carry a spare.
Final Thoughts
After all these years teaching and diving, here’s what I can tell you: buy fins that fit your diving, travel plans, and budget. Not someone else’s idea of the ‘best’ fins.
If you mostly dive warm water from boats, full-foot fins or travel-size paddle fins will make your life easier. If you dive in varied conditions or cooler water, open-heel paddle fins are your workhorse. If you have knee or ankle issues, split fins might save your diving career. If you’re getting into tech diving or photography, invest in good paddle fins with solid control.
Try before you buy if possible. Borrow fins from friends or rent different styles to see what works for you. Pay attention to how your legs feel after an hour underwater. That’s your real test.
And remember: the best fins are the ones that disappear. When you stop thinking about your fins and just dive, you’ve found the right pair.
Good diving!
