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The TAC is the optimum combination of size and with for unprecedented performance. 

Modeled after its military counterpart, the TAC fin provides superior thrust and maneuverability. 

(TAC Military "Red" label version not available for consumer sale)

Paul de Gelder Bionic AF Fins

Signature of Paul de Gelder - host of Shark Week. 

This fin brings carbon fiber,

lightweight, style and 

propulsion to a whole 

another level.  

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​The DEFIANT XT is taking the blade fin to the next level.  With a bi-directional design, it carves through currents and provides exceptional thrust.

Indigo Industries Adaptive Scuba Fin

The Adaptive fin is designed to provide amputee divers with independence in the water. The fins are engineered above the knee and below the knee amputations and feature an adjustable strap to adjust to individual needs. Perfect for adaptive scuba divers and swimmers.

What people are saying

"I'm in love with these fins! No other fin I've owned in 20 years of diving have the comfort, thrust and power of the Indigo fins.  They are awesome! "


Jay Weimer, Commercial Diver

All Indigo fins utilize our patent pending modular design that allows you to create and customize your fins for your body type and diving style.  

Unsolicited and non-paid endorsements

How leverage works with Scuba Fins



Competitor Fin length

RESULT:  Weight on your ankle =35 poundsIncrease weight on your ankle of 44%

Key Points 

  • Stamina increases with lighter weights. The human body performs better with lighter weight and more repetitions. (Think bicycle cadence)

  • The leverage on long fins increases the weight on your body.  

Shorter fins equal

  • Less weight on your ankle

  • Every stroke is easier  to  achieve

  • Less weight on your foot (far less cramping)

  • More kicks that are easier to achieve.

  • Longer stamina

Long fins equal

  • More weight on your ankle

  • Every stroke is harder to achieve

  • More weight on your foot (far MORE cramping)

  • Less kicks that are harder to achieve. (example of fins = 46% Harder to kick)

  • Far less stamina

Weight on your ankle =
35 pounds



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Weight-15 lbs.png
Weight on your ankle =
             24 pounds

Our bodies perform best over a long period of exertion when the weight we carry is light.   Scuba is no different.  One of the laws of physics is the effect of leverage.  It is not changeable... not even with fins.   The longer the fin the more leverage it has and that leverage is working against you as shown below.