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SKU: 4463
Reg. Price: $149.95
Our Price: $108.80


IST Open Heel Rubber Rocket Fins

Traditional rubber fin with proven design.

Long proven traditional design rubber fins originally developed by U.S. divers and when the Patent ran out everyone now has this classic 'Duck' style fin. Built in different hardness produces responsive blade. Vented channels to direct the water flow.


  • By combining features such as special blade curvature, varying degree of flexibility and structural ribs, the product is positive forward thrust with spring-like effect
  • The open vents efficiently channels the water flow to give added energy saving effect
  • Stainless steel spring fin strap compatible (item no.: FS11)
  • Sizes: M (US 5 EUR 36), L (US 6-7 EUR 37-39), XL (US 8-9 EUR 40-42), XXL (US 10-11 EUR 43-35), XXXL (US 12-13 EUR 46-48)
  • Womens shoe sizes are approximately 2 sizes smaller than mens. Example: Womens size 8 would be Mens size 6
Size Chart Size Chart


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Question asked
on 2/18/2012
We are interested in the IST Open Heel Rubber Rocket fin but would need them by next Fri 2/24. Are they in stock? I see you use Fed Ex, does that mean you use overnight shipping? Thanks so much.
Answer by Bill
on 2/20/2012
Hello, We use UPS and yes these are available so simply place your order and choose 2 day shipping.
Question asked
on 2/15/2014
If I get a pair of these and they don't fit my booties, will I be able to return them and get another size?
Answer by Bill
on 2/19/2014
Hello, yes we have a 60 return/exchange policy as long as they are not used. Thanks, Bill
Question asked
on 2/23/2017
My son is training for Navy special forces and needs fins his shoe size is 11 but he has wide flat feet what size fins would you recommend? Thank you
Answer by chris
on 2/23/2017
Hi, Thanks for your question. For a size 11, I would recommend a size XXL. If you have any other questions, please let us know. Thanks Divemaster Chris
Question asked
on 5/21/2020
Do these come as a set of two, or individual. It doesn't state but the description is plural.
Answer by chris
on 5/21/2020
Hi, Thanks for your question. This will be a pair of fins. Thanks DIvemaster Chris 866-728-2293 Onlinescuba
Question asked
on 4/19/2024
What is the length of the fin?
Answer by sierra
on 4/22/2024
Hello, Thank you for the question. That might depend on the fin size but I did measure an XL and the overall length is 19" exactly. Hope this helps, Happy Diving, Sierra 1-866-728-2293 OnlineScuba Founded 1996