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Diving Unlimited International (DUI) is an American diving equipment designer and manufacturer. DUI is particularly well known among recreational and technical divers as the maker of high-end dry suits.[1] DUI also manufactures dry suits and associated products for all the branches of the US military and friendly foreign military around the globe.[2]

DUI has several patents related to diving equipment and dry suits. The company was founded in 1963 by Dick Long. DUI's manufacturing facility and main offices are located in San Diego, CA.


  1. ^ "Dive Bag Market – Key Players, Size, Trends, Growth Opportunities, Analysis and Forecast To 2025". Bulletin 99. 2020-01-28. Retrieved 2020-01-28.
  2. ^ Marwa, Stefen. "Comprehensive Study on Global Diving Suit Market (2020-2029) || Diving Unlimited International, Huish Outdoors – Neptune Pine". Retrieved 2020-01-28.