shinfin™ = Fins on legs = Feet free

Multipurpose flippers

Do you need better fins?

  • Sick of foot flippers?
  • Looking for the best fins?
  • Curious about the shinfin™ benefits?
  • Wondering what you can use them for?
  • Like to join thousands of happy customers around the world?
  • Then please read on –  shinfin™ leg fins can help you.

Buy shinfin™ leg fins with confidence – online shop

Do you need help with our online shop? I know it can be a hard decision to buy shinfin™ leg fins online (or by phone) without seeing them first. So we offer a 100-day money-back guarantee to help you buy with confidence. Please feel free to try some and see what you think. We get very few returns. The fins and straps are top quality and made in Sydney, Australia. We ship worldwide from Sydney. We have volume discounts and sometimes have factory seconds for sale too. Please contact me if you are interested in becoming a reseller or affiliate. More shop help

How do shinfin™ leg fins work?

shinfin: up and down kick powershinfin™ leg fins are a natural evolution from foot flippers. They strap to your legs. So your feet are free to move naturally. That is why they avoid common flipper problems. Most importantly, I have designed them for a natural streamlined kick like good swimmers’ freestyle, backstroke and butterfly. (Some customers use them for breaststroke or “frog-kick” but I didn’t specifically design them for this.) They encourage kicking from your hips with only a little knee-bend (foot flippers need much more knee-bend). You will quickly feel their natural action. If you don’t already do a streamlined kick, they will teach you. Natural kick, many benefits, multipurpose and more fun.
Please view the swimmer animation (top of page) with these key points in mind:

  • The straps fit securely just above your ankle.
  • The fin is comfortable and flexible to fit your leg.
  • The fin extends from the middle of your shin down to your toes.
  • Your feet and ankles are free to walk, dive and swim naturally.
  • For down-kick power, the fin curves along the front of your leg.
  • For up-kick power, the fin curves away from your leg.
  • You kick from your hips with only a little knee-bend.
  • Your kick is streamlined like good swimmers kick.
  • You use big muscle power from your thighs and torso.
  • Your body is horizontal to minimise drag.
  • You can use them for freestyle, backstroke and butterfly.
  • This US TV advert shows you the fins being used.

What’s wrong with foot flippers? (If you don’t already know!)

I get so many emails about foot flipper problems. We all know the problems with foot flippers, due to them being on your feet. They often don’t fit properly. They hurt your feet. They stress your ankles, strain your calf muscles and twist your knees too much. They also change your kick to a “bicycle kick” with too much knee-bend. They are too heavy. They fall off and sink. They often break or rot. And they trip you up when you walk. Leave all these problems behind when you switch to shinfin™ leg fins. More on foot flipper problems

What shinfin™ benefits do you need?

Which of these 7 shinfin™ benefits do you need most? You get many exciting new benefits from shinfin™ leg fins that you can’t get from regular foot flippers. You can probably guess some of them. They are highly adjustable to fit you comfortably. They leave your feet and ankles free to walk, dive and swim. They are also very light and tough. Because they connect to your legs, they match and teach the best swimming styles. They encourage power from your hips and an efficient streamlined kick.

Adjustable Fit Fins

Need fins that fit? + One size fits small, medium, large & extra-large. + Same size fits children to adults. + They don’t fit on your feet. + Foot size doesn’t matter. + Fins bend to fit your leg size & shape. + Fit with or without a wetsuit. + Keep fitting growing children. + Easy to share. + Your most adjustable fins.

Best Swimming Style Fins

Need a better swimming style? + Correct stroke biomechanics. + Beginners to elite. + Child to adult. + Able-bodied & disabled. + Improve & strengthen your freestyle, backstroke & butterfly. + Horizontal body. + Smooth kick. + Relaxed feet. + Ankles flex with correct timing. + Proper kick balance for arm pulls. + Align fins to optimise your kick. + Discover your inner swimming style.

Comfortable New Fins

Need comfortable fins? + Comfortable toes & feet because they don’t fit on your feet. + Relaxed ankles. + Comfortable Achilles tendons & calf muscles. + Comfortable knees, hips & back. + Flexible fit. + Avoid foot flipper pain, cramps & blisters. + Now you can have fins & comfort.

Feet Free Fins

Need your feet to be free? + Feet free to walk easier. + Much safer than regular foot flippers. + Feet free to swim, dive, turn, flip-turn & push off from wall. + Climb up & down pool steps & boat ladders. + Stand, kneel & drop-knee on bodyboards, kneeboards & surfboards. + No more duck-feet.

Hip Power Fins

Need more kick speed from your larger muscles? + Efficient hip power from your thighs, buttocks, stomach & torso. + Smooth power delivery throughout each stroke. + Correct stroke timing for freestyle, backstroke & butterfly. + Kick pattern imprints on your muscle memory. + Better technique even after you take them off. + Power from your hips, as it should be.

Light Tough Fins

Need tough, light-weight fins? + About half the weight of foot flippers. + Under 300g (10oz) each. + Flatter & easier to pack. + Secure strapping system. + Don’t break or fall off. +Tough hi-tech flexible polyurethane. + Integral moulded buckles. + Quality, replaceable, natural rubber straps. + No foot pocket to tear like regular flippers. + Tough, light fins that last you for years.

Streamlined Force Fins

Need efficient, streamlined propulsion? + Propel fast. + Smooth kick thrust. + Higher straighter knees. + Horizontal thighs. + Higher straighter hips. + Horizontal torso. + Streamline your whole body. + Less drag. + Less wasted energy. + Efficient, streamlined thrust for freestyle, backstroke & butterfly. + Your streamlined swimming feels so much better.

What will you use shinfin™ leg fins for? (multipurpose)

You can use shinfin™ leg fins instead of regular foot flippers for many water sports, and in new ways too. The one shinfin™ design suits many water sports (unlike different foot flipper designs for different sports). Use them in the pool for swim learning, instruction, fitness, technique, training, aqua aerobics and aquatic therapy. Use them in the surf for body surfing, boogie/bodyboarding, kneeboarding, river boarding and surfing. Use them underwater for snorkeling, skin/scuba diving, spear fishing and freediving. Use them to paddle fishing craft and for safety on windsurfers, kiteboards, surf skis, kayaks, jet skis etc. You can even wear shinfin™ leg fins with foot flippers or with monofins.

Aqua Aerobics Fins

Need better aqua fitness & water exercises?+ shinfin™ leg fins rebuild muscle tone & strength. + Reduce fat. + Pool workouts for your thighs, buttocks & stomach. + Exercise core muscles in your torso & back. + Deep water running, aqua jogging & water-walking. + Treading water exercises (including “egg beater” kick). + Adjust fin position on leg for different exercises. + Increase cardiovascular fitness & capacity. + Improve water aerobics fitness & stamina. + Comfortable fins. + Enhance your aqua aerobics routines.

Aquatic Therapy Fins

Need to recover from injuries, operations or movement difficulties? + shinfin™ leg fins enhance aquatic therapy & physiotherapy. + Operation recovery. + Injury rehabilitation. +Adjust fin position on leg for different water exercises. + Strengthen and tone your back, torso, hips, legs & knees. + Water fins that improve your joint mobility & movement range. +New pool fin exercises for injury rehabilitation. + Alternative aquatic fin routines for operation & stroke recovery. + Extra pool physiotherapy options for movement rehabilitation. +Exercise fins that increase your cardiovascular fitness & capacity. + Optimise your rehabilitation.

Body Surfing Fins

Need a more natural body surfing technique? + shinfin™ leg fins give smooth power from your strong thigh & buttock muscles. + Streamlined position. + Streamlined kick technique.+ Lie closer inside the wave power zone. + Natural, powered control on the wave face. + Fins in line with your legs for less drag. + Smooth dolphin-style turns. + Fast rotation to catch waves. + Stand on sandbanks to push off. + Finally, comfortable body surfing fins so you can stay out longer. + Comfortable toes, feet, ankles & Achilles tendons. + No foot or calf cramps. + Easier to walk. + Lightweight. + Don’t break. + Don’t fall off. + Fins fit with or without wetsuit. + Achieve your body surfing dreams.

Boogie/Bodyboarding Fins

Need to get to waves faster with power from arms & legs? + shinfin™ leg fins lie parallel with your legs for less drag. + Full stroke freestyle arms & legs, lying on your bodyboard. +Drop-knee, kneel & stand on your boogie board. + Streamlined kick from your strong thigh & buttock muscles. + Ride deeper in wave power zone. + Smooth, powered control on wave face. + Fast spin to catch waves. + New wave techniques & tricks. + Stand & push off from sandbanks. + At last, comfortable bodyboarding fins so you can ride more waves. + Don’t hurt toes, feet, ankles or Achilles tendons. + Don’t give calf or foot cramps. + Easier to walk. + Lightweight & tough. + Fins stay on. + Fit with or without wetsuit. + Take your bodyboarding to the next level.

Kneeboarding Fins

Need fins to power out & kneel on your board? + shinfin™ leg fins let you lie on your kneeboard to kick & paddle at the same time. + Full stroke freestyle arms & legs. + Knees just behind your board. + Streamlined kick from hips. + Powerful kick from your strong thigh & buttock muscles. + Fast spin to catch waves. + Easy to kneel. + Fins lie flat along shins. +Comfortable kneeboarding fins. + Comfortable toes, feet, ankles & Achilles tendons. + Don’t give you calf or foot cramps. + Easy to walk. + Stand & push off from sandbanks. +Lightweight & tough. + Fins stay on. + Fit with or without wetsuit. + Speed up your kneeboarding.

River Boarding Fins (hydrospeed, water sledge)

Need fins that let you use your feet? + shinfin™ leg fins lift your legs more horizontal & streamlined. + Legs, knees & feet are higher above obstacles. + Tough protection for shins & feet. + Powered steering control through rapids. + Streamlined kick from your hips. + Powerful kick from strong thigh & buttock muscles. + Fins in line with legs for low drag. + Easier to walk between rapids. + Stand more safely on river bed. + Comfortable new river board fins (hydrospeed fins – Europe; water sledge fins – New Zealand). + Comfortable toes, feet, ankles & Achilles tendons. + Don’t cause calf or foot cramps. + Secure fit. + Lightweight & tough. + Fit with or without wetsuit. + Evolve your river boarding.

Scuba Diving Fins

Need better mobility on land & in water? + shinfin™ leg fins make walking easier on land & in boats. + Climb up & down boat ladders. + Safer water entry & exit. + Natural, streamlined kick with less knee-bend. + Slow or fast kicks. + Less cumbersome than traditional scuba diving fins. + About half the weight of regular fins. + Less kicking up silt & sand. +Swim through gaps easier. + Comfortable feet & relaxed ankles. + Don’t strain Achilles tendons. + Don’t cramp feet & calf muscles. + Fins don’t stick out from your toes. + Less kicking of coral reefs, plants & animals. + Preserve underwater marine life. + Revolutionise your scuba diving.

Snorkeling Fins

Need more comfortable kicking & easier walking? + shinfin™ leg fins give comfortable feet, ankles, Achilles & calf muscles. + Best duck dive gear. + Fins don’t flap in the air. +Lightweight & less bulky than regular snorkeling fins. + Easy to pack for travelling. + Smooth, natural kick with less knee-bend. + Streamlined kicks, slow or fast. + Less surface splashing. + Easier walking on land & boats. + Climb up & down boat ladders. + Safer water entry & exit. + Easier to explore shorelines & coral reefs. + Fins don’t stick out from your toes. + Minimise damage to underwater environment. + Evolve your snorkeling.

Surfing Fins

Need to get to waves faster with extra fin power? + shinfin™ leg fins leave your feet free to stand on your surfboard. + Kick & paddle at the same time. + Full stroke freestyle arms & legs, lying on your board. + Knees just behind your surfboard. + Streamlined kick from hips. + Powerful kick from your strong thigh & buttock muscles. + Fins in line with legs for less drag. + Stand & push off from sandbanks. + Easy to walk. + Lightweight & tough. + Fins stay on. + Fit with or without wetsuit. + Comfortable surfing fins. + Comfortable toes, feet, ankles, Achilles & calf muscles. + Upgrade your surfing.

Swim Fitness Fins

Need to tone up your body & increase your fitness? + shinfin™ leg fins strengthen your core muscles, stomach, buttocks & thighs. + Burn calories, reduce fat & lose weight. +Improve cardiovascular health & lung capacity. + Increase swimming fitness, strength & technique. + Workout the same muscles as good swimming without fins. + Better muscle exercise than foot flippers. + No calf muscle strain like foot flippers. + Relaxed, comfortable feet & ankles. + Safer walking, water entry & exit. + Easy wall push-off & flip-turns. +Lightweight & easy to pack in your bag. + Simple to plan into your exercise program. + Look after your fitness & health.

Swim Instruction Fins

Need a better way to teach freestyle, backstroke & fly? + shinfin™ leg fins actively encourage efficient, streamlined swimming strokes. + Use same muscles as swimming without fins. + Improved technique continues after fins taken off. + Water flow lifts legs & body horizontal. + Teach straighter knees (no knee-bend like regular flippers). + Fin flex guides a natural, streamlined kick from hips. + Power from thighs, buttocks & stomach (not calves like regular flippers). + Balance & encourage proper arm techniques. + Help teach good stroke timing & breathing. + Encourage comfortable relaxed ankles & feet. + Same size for child & adult lessons. + Valuable aid for learn to swim classes, swim schools & courses. + Add a new teaching skill to your swim instruction.

Swim Learning Fins

Need help learning to swim? + shinfin™ leg fins teach beginners good freestyle, backstroke & butterfly. + Lift your legs & body horizontal. + Guide a natural, streamlined kick from your hips. + Learn same muscle use as without fins. + Learn correct power from thighs, buttocks & stomach (not calves like regular flippers). + Develop proper straighter knees (no knee-bend like regular flippers). + Balance & encourage good arm technique. + Teach good stroke timing & breathing. + Comfortable relaxed ankles & feet. + Excellent for learn to swim classes. + Same size fits adults & children. + Like having your own swim teacher.

Swim Technique Fins

Need a better swimming technique? + shinfin™ leg fins match elite freestyle (front crawl), butterfly (fly) & backstroke techniques. + Streamline & strengthen your whole stroke. +Improvements transfer to swimming without fins. + Better kick supports stronger arm pulls. + Better kick allows efficient breathing & timing. + Natural, streamlined kick from hips with fairly straight knees. + More power from thighs, buttocks & stomach. + More power from up & down kicks. + Ankles & feet relaxed & supple, like without fins. + Improve fast, medium & slow kick techniques. + Adjust fin angle & height on leg to tune your kick. + Just swim & let them guide you.

Swim Training Fins

Need more speed from your natural stroke? + shinfin™ leg fins train stronger, faster freestyle, butterfly & backstroke. + Train same muscles as without fins. + Train same stroke timing as without fins. + Stronger kick supports better arm drills. + Exercise cardiovascular system. + Full stroke & kick-only sets. + Swim training with or without kickboard. + Fast, medium & slow kick drills. + Flip-turn & easy push-off from wall. + Safer walking, water entry & exit. + Swim clubs, coaching squads & Masters swimming programs. + More value from your swim training program.

Water Sport Safety Fins

Need safety backup fin power for windsurfing, kiteboarding, surf skiing, kayaking etc.? + Wear shinfin™ leg fins whilst using your craft. + Swim back to your craft easier. + Swim back to shore easier. + Feet still fit in foot straps. + Use with surf skis, kayaks & canoes. + Feet free to stand. + Use with windsurfers, kiteboards & stand up paddle boards. + Easy to pack in an emergency bag. + Lightweight & strong. + Less cumbersome than regular flippers. + More safety, more fun.

Wear With Monofin

Need more speed with your monofin? + Wear shinfin™ leg fins & your monofin, together. + Train for fin swimming sport. + shinfin™ inner edges overlap each other & stay together. +shinfin™ tips press onto monofin during forward kick. + One long, continuous forward power surface. + shinfin™ tips flex away from monofin during backward kick. + Two separate, parallel backward power surfaces. + More power from your thighs, buttocks & torso. + Reduce monofin strain to your feet, ankles & calf muscles. + Turbocharge your monofin.

Tips for using shinfin™ leg fins

shinfin™ leg fins are an exciting new paradigm in fin design and use. To get the best from them, this website has tips areas for care & materials, fin size, fitting your fins, kicking your fins and walking in your fins. More on tips

Using shinfin™ leg fins with a disability

You can use shinfin™ leg fins with many disabilities. They work with bunions, club feet, fused ankles and foot amputations. They still fit below knee amputations (BKA) and above knee amputations (AKA). You can even strap them to your arms with below elbow amputations and above elbow amputations. They provide real benefits for many movement disabilities such as Cerebral Palsy (CP), Multiple Sclerosis (MS) and Parkinson’s Disease (PD). More on disabilities

My Design Passion – Natural swimming fins

I’m passionate about designing shinfin™ leg fins to match the natural biomechanics of good swimmers. I aim to help all levels of swimmer to improve their swimming technique and fitness, with a proper body position and a natural streamlined kick. This enhances the enjoyment and benefits of swimming and other water sports.

I first believed there must be a better alternative to foot flippers around 1990. That was more than 50 fin prototypes ago – it has been a much harder design challenge than I first thought! My passion, together with the kind help from many people, keeps me going. The result is an exciting new design that I feel genuinely comfortable offering to you. I’ve had very pleasing feedback from many customers around the world, some of which you will see on this website.

Good swimmers and swim coaches quickly feel the natural, streamlined kick of shinfin™ leg fins and recognise their benefits. You feel them keeping your body horizontal for less drag. You feel them guiding you to kick from your hips, with only a little knee-bend. You feel the power coming from the big muscles in your upper legs, buttocks, stomach and torso. These are same muscles you use for good “no-fins” swimming. They don’t strain your feet, ankles and calf muscles like foot flippers. You also feel them give you the correct body balance to support your arm stroke. With shinfin™ leg fins, you know your swim training is strengthening your natural kick because your kick feels right. That’s why they also improve your “no-fins” swimming technique (arms too), your stroke efficiency and your speed. So these biomechanically advanced fins are an evolutionary step up from all foot flippers (including short, training flippers).

Beginners, intermediate swimmers and swim teachers also quickly feel how shinfin™ leg fins encourage a horizontal body position with a good streamlined kick. Their natural, rhythmical flex teaches and guides you into the correct streamlined kick. These benefits come naturally, without you needing to think about it too much. Even if you can only swim a little way at first, you will soon find your swimming technique (arms too), swim fitness, breathing, distance and speed much improved by using them. Just relax and let them guide you. They offer you an exciting new way to improve your stroke technique, fitness and your enjoyment of the water.

For other water sports (snorkeling, body surfing, bodyboarding, kneeboarding, surfing etc.) you still do the same streamlined kick with shinfin™ leg fins. I recommend using them for freestyle, in calm water first, to become comfortable with the streamlined kick from your hips and only a little knee-bend. Then transfer this streamlined kick to snorkeling or paddling your board. Lie horizontal on your board and kick and paddle together – like doing freestyle lying on your board. They offer you a comfortable, light-weight alternative to the many problems of foot flippers.

I have not designed them for a foot flipper kick. If you force them into a foot flipper kick, they will feel floppy and inefficient. Foot flippers require a different kick with more knee-bend, using different muscles. That’s why foot flippers strain your feet, ankles, Achilles tendons and calf muscles. To help evolve from your old foot flipper kick, wear your shinfin™ leg flippers and swim arms-only freestyle or backstroke. Let them lift your legs into a horizontal streamlined position with your knees fairly straight. Then add your kick gradually and let the fins flow naturally. They will guide you into a good streamlined kick and you will feel the power from your upper legs, buttocks, stomach and torso. This usually happens almost immediately. If a streamlined kick is new to you, it may take a while to build your strength for it. The benefits of shinfin™ leg fins will transfer to improve your swimming without fins too.