International Drysuit Day 2026

International Drysuit Day 2026

June 23, 2026

International Drysuit Day is back for 2026! Post your dive adventures using #InternationalDrysuitDay  and inspire others to join in the fun!

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DUI Mission Statement

DUI Mission Statement

May 28, 2026

Opening up a world of UNLIMITED possibilities through proven performance and innovation. Custom-built for your comfort, confidence, and the pursuit of exploration.
— Since 1963

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Through This Blog Reads the Best Divers In This World

Through This Blog Reads the Best Divers In This World

March 09, 2026

After expanding DUI into the building next door we finally added our classic sign above the door once more and it feels good!

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DUI x Ocean Reef Collaboration

DUI x Ocean Reef Collaboration

December 10, 2025

Diving Unlimited International (DUI) and Ocean Reef Group have partnered to combine DUI’s drysuit expertise with Ocean Reef’s full-face mask technology. The collaboration will reflect both companies’ shared mission to make diving more accessible and inspiring while setting a new standard for underwater exploration.

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With Our Deepest Sympathy

With Our Deepest Sympathy

July 31, 2025

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International Drysuit Day - June 23

International Drysuit Day - June 23

June 23, 2025

On June 23, post your dive adventures using #InternationalDrysuitDay 

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Press Release from Diving Unlimited International, Inc 2021-06-22

Press Release from Diving Unlimited International, Inc 2021-06-22

June 22, 2021

Dick Long, the founder of Diving Unlimited International (DUI), has announced that DUI is moving forward in its mission to create innovative products for safe and comfortable diving under new leadership.

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GIVEAWAY [EXPIRED]

GIVEAWAY [EXPIRED]

June 10, 2021

Want a chance to win a FREE OMS Slap-Strap or the new Beyond Silicone Wrist ZipSeals? Submit your photos of you or your friends in DUI or OMS gear!

Each week we will randomly pick a winner! Best photo of each month will win a pair of the new Beyond Silicone Wrist ZipSeals. Be one of the first to use these new seals!

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OMS Distributor Meeting Philippines

OMS Distributor Meeting Philippines

March 14, 2017

OMS is an expanding and evolving product offerings for 2017, including the new IQ Lite backpack and the OMS regulator. The OMS regulator with a Work of Breathing (WOB) of .8 Joules˟ is among the finest in the dive industry.

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OMS Team Building Diving the Yukon

OMS Team Building Diving the Yukon

March 14, 2017

The Diving Unlimited International (DUI) & Ocean Management Systems (OMS) Team headed out for a dive on the Yukon. Visibility on the Yukon is at its best this time of the year. I was diving side mount. My gear of choice the OMS Comfort Harness II, stainless steel back plate accompanied by the Tesseract Wing and Recreational Side Mount Adaptor.

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DIVING THE URIBE 121

DIVING THE URIBE 121

August 10, 2016

Patrick is part of California Ships to Reefs who has headed a number of the Marine Biology studies for reef projects. He pointed out the ship is covered with thousands of juvenile scallops and other encrusting organisms. The ship has a number of marine life monitoring projects on it that will document the diversity of marine life that has set up housekeeping on the Uribe.

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SIDE MOUNT DIVING THE OMS APPROACH

SIDE MOUNT DIVING THE OMS APPROACH

July 01, 2016

Side Mount diving has been around for decades. It was originally designed to explore cave systems that required long treks underground to sumps. This necessitated the need to break the kit down to smaller and more easily handled components for entering and exiting the water, diving, and moving through dry passages. 

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