10 best ist diving fins

• DURABLE DESIGN — Strong rubber design is longlasting and premium-grade.
• MILITARY CHOICE — #1 choice for Special Ops and U.S. Navy SEAL program.
• SPECIAL CONSTRUCTION — Curvature and tapered blade for better propulsion.
• JET STYLE — Deep grooves channel water backwards for a powerful kick.
• OPEN BACK — Designed to be worn with dive booties, size chart includes boots

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Product features

Rugged Build

A tough, sturdy construction offers the perfect balance of strength and flexibility. The premium design stands up to harsh environments and extreme temperatures for unmatched reliability.

High-Power Blades

Uniquely curved and tapered blades for positive thrust and a powerful kick for more speed with less effort.

Dynamic Engineering

Deep vents in the blades propel water backward, emulating the acceleration of three synchronized turbo-powered water jets.

Hydrodynamic Ribbing

Structural ribs add strength and channel water effectively from the toe to the tip of the blade, delivering a spring-like energy return with every stroke.

Maximum Agility

Long enough to minimize leg fatigue during open-water dive missions, but agile enough to ensure diver maneuverability within confined spaces.

Coil Spring Strap Compatible

Compatible with IST’s stainless-steel coil spring straps (sold separately).

Product description

Durable Design

The IST Super S Fins are designed with comfortable material that fits and performs great. The super-soft foot pocket is snug and supple enough to wear barefoot and helps to avoid chafing and blisters. The specially-designed balanced blade helps level swimmers, providing better control and maneuverability underwater.

Versatile Use

Great for both kids and adults, these fins are the optimal choice for snorkeling, bodyboarding and more. Flexible enough for easy kicking and strong enough for optimal propulsion, these fins are the ideal choice for wherever the waves take you.

Environmentally Safe

We believe that caring for the environment is just as important as caring for our customers. The Super S Fins are constructed of non-toxic, odorless materials to keep oceans clean and wildlife healthy. Feel good about the gear you choose with IST Super S Fins.

• BETTER BALANCE — Balanced blade ensures easier control in the water.
• EASY DRAINAGE — Open toe for reduced drag and easy cleaning.
• QUALITY CONSTRUCTION — Durable material is comfortable and longlasting.
• VERSATILE USE — Ideal for kids and adults.
• ECO-FRIENDLY — Non-toxic, odorless and recyclable.

User questions & answers

Product description

F4 Propulsion represents the latest evolution of Military-style Fins from IST. Based on IST's iconic and military favorite F-1, the F4'swide blade design is slightly shorter however, there is no power shortage here. That s because of the expanded width rubber blade which incorporates unheard-of flexibility. Even more thrust is attained by 3 deep vents which force water backwards, emulating the effect of three synchronized turbo-powered water jets.

• SPECIALTY DESIGN — A curved, tapered blade with an open back designed to be worn with dive booties.
• SHORT BLADE — The same power and reliability as the original F1 Rubber Rocket in a compact style.
• EASY WEAR — Adjustable straps and quick-release buckles make donning and doffing easy.
• JET STYLE — Deep grooves and vented blades force water backwards for better propulsion.
• Open Foot Pocket — Designed to ear with dive booties

User questions & answers

Product description

The IST Spring Fin Straps feature ultra-stretchy rubber for extreme comfort and durability. No more need for adjusting or detaching — this bungee strap system fits easily to IST FP-01, F-6, F-4 and CF-22 fins.

• Bungee fin strap system for IST scuba diving fins
• Easy attachment that eliminates constant adjusting
• Extra-large pull loop for easy donning and doffing
• Spring-activated system
• Compatible with IST FP-01, F-6, F-4 and CF-22 Fins

Product description

IST F26 Blitz Free Diving and Spear Fishing Fins are engineered and built with the particular needs of free divers and spear fishing in mind. Power, speed and energy conservation are critical in both free diving and spear fishing, but IST knows that comfort matters too.

Blitz addresses the need for speed, power and energy conservation with a special tri-material construction that provides both strength and flexibility in the extra-long blade. The supple thermo rubber foot pocket offers a comfortable and snug fit.

This is a fin to help power you along, with an extra-long, flexible blade that delivers a spring-like feel and ultra-quick acceleration for excellent reaction time. The rib-like structure of the perimeter reinforcement and fin blade are hydrodynamic: they work together to channel water directly backward to maximize thrust and power while keeping energy expenditure as low as possible.

High density TPR perimeter reinforcement adds the connection and strength needed between the blade and foot pocket to ensure reliability and durability, dive after dive.

Available in adult sizes, Classic Black.

• Purpose-built long fins for free diving and spear fishing
• Thermo rubber foot pocket provides a comfortable, snug fit
• High density Thermo Plastic Rubber (TPR) perimeter reinforcement makes the blade strong and flexible
• Open toe box for quick draining
• Side ribs channel water backward to maximize thrust, power and speed

Product description

Excellent for Spearfishing

The IST Bora Bora Fins don a sleek style that reduces drag and won't weigh you down. For freediving and spearfishing, minimal water resistance is an absolute must, which is why this essential pair of fins is designed specifically with these watersports in mind.

Powerful Kick

The rigid, angled blade provides plenty of strength to propel you without causing exhaustion, while the unique semi-split design features a flexible center membrane that supplies elasticity without sacrificing power. With everything you need to provide the best underwater experience, the IST Bora Bora Fins are the ultimate choice in diving gear.

Comfortable to Wear

Adjustable straps, quick-release buckles, extra large-thumb loops — what more could a diver ask for? These fins feature spacious foot pockets to be worn with dive booties and a convenient design that cuts down on donning time, giving you more time in the water.

• SEMI-SPLIT STYLE — An elastic center membrane channels water backward for better propulsion.
• STRONG BLADE — Rigid, angled blade minimizes leg fatigue and maximizes kick power.
• WEAR WITH BOOTIES — Soft, roomy foot pocket is designed to wear with dive booties.
• ADJUSTABLE FIT — Quick-release straps and extra-large thumb loops make donning and doffing easy.
• Designed to be worn with dive booties

User questions & answers

Product description

Efficiently Engineered

The IST SUMI Fins are specially designed with materials of varying flexibility to create the best performing product available. The blades are constructed of a semi-hard material to provide stiff resistance that maximizes power while still allowing give and flexibility. Ribbing is extra-hard material to channel water and increase efficiency. The foot pocket is made for incredible comfort with super-soft material that's snug and doesn't weigh you down.

Ultra-Powerful

With performance at the forefront of the design process, the SUMI Fins are made to enhance your diving experience by providing support and amplifying kick power. The blades are fashioned exactly 22 degrees from the line of the foot, ensuring premium thrust and propulsion.

Multi-Functional

Whether you're spearfishing or scuba diving, these fins provide premium quality so you can focus on having fun. Speed, power and mobility — these fins give you everything you need for an incredibly memorable experience.

• MULTI-MATERIAL DESIGN — Blades are constructed with varying hardness for maximum performance.
• BETTER PROPULSION — 6 blade channels propel water for extreme kicking power.
• CONVENIENT FIT — Adjustable straps, quick-release buckles & extra-large thumb loops.
• EFFICIENT ANGLE — A 22° blade-to-foot angle provides better thrust.
• WEAR WITH BOOTIES — Super-soft foot pocket is designed to be worn with dive booties.

User questions & answers

Product description

With over 35 years’ experience as a manufacturer of dive and water sports equipment, IST has earned its reputation for using quality materials in efficient, attractive designs. IST F6 Pro Power Open Heel Scuba, Free Diving, Snorkeling Fins demonstrate that commitment, and are built to perform. A perfect all-around beginner to intermediate fin, Pro Power provides excellent propulsion with moderate stiffness.

A super comfortable and ample foot pocket with open heel design offers plenty of space for larger sized booties.

Streamlined blades with hydrodynamic, water-channeling ribs produce maximum thrust. Resilient center membrane directs the water flow backward, reducing drag and leg fatigue.

Quick release buckles make putting on and pulling off fast and easy.

• Open heel strap fins for scuba, snorkeling or free diving
• Sleek, streamlined blade design produces maximum thrust
• Flexible center membrane directs water backwards to reduce drag
• Comfortable, roomy foot pocket accommodates large booties
• Designed to be worn with dive booties

Product description

IST Bora Bora Scuba Diving Fins A powerful fin by nature. Its rigid, robust blade is delicately balanced by the special elastic centre membrane, which is designed to channel water backward, giving more speed and power to get on top of the conditions. The angle of the blade - in relation to the foot pocket - is designed with efficiency in mind. As each stroke begins, the fin provides ample propulsion without straining the muscles. Rubber grip under foot pocket prevents slipping on deck or similar surfaces Underside foot pocket drain hole for water drainage   Colors: Black, Blue Sizes: S/M (US 6-18 EUR 36-41), L/XL (US 9-10 EUR 42-44), XL/XXL (US 11-12 EUR 45-47)

Product description

Reliable Quality

The IST FK31 Otter Trek Fins provide power, flexibility and maneuverability in one complete package. Durable material is longlasting and versatile, so you can depend on them no matter where your next trip takes you. The contoured, vented blade propel water through channels to add extra snap to every kick and the open toe pocket minimizes drag.

Comfortable Fit

A soft, open-heel foot pocket provides a snug fit that's ideal for barefoot wear or pairing with booties in cooler waters. The adjustable straps and quick-release buckles allow you to get the perfect fit and easily share with friends and family. Their versatility is also ideal for rental use.

Take With You Everywhere

The compact Otter Trek Fins are the ideal pick for your next vacation or beach escape. The short style slides easily into any backpack or carry-on bag with room to spare for other gear and accessories. Plus, their multipurpose use ensures you're prepared for every opportunity.

• QUALITY DESIGN — Durable construction in a convenient, lightweight style.
• PERFECT FOR TRAVEL — Compact style fits easily into a backpack or carry-on bag.
• PLENTY OF POWER — Short, vented blades & side ribs channel water to maximize propulsion.
• COMFORTABLE WEAR — Supple open-heel foot pockets are soft and can be worn barefoot or with booties.
• EASY DONNING & DOFFING — Adjustable straps & quick-release buckles are extremely convenient.

User questions & answers