Gliding underwater with the freedom of a dolphin has become a reality with the CudaJet, a revolutionary underwater propulsion system that allows users to explore the ocean depths in a new and exhilarating way. Unlike traditional underwater propulsion systems, which are typically attached to the arms or legs, the CudaJet is worn like a backpack, providing hands-free mobility and increased comfort for extended underwater activities. This innovative design not only enhances the user experience but also makes it more accessible for those interested in exploring the ocean in an entirely new way.
Archie O’Brien, the British designer behind the CudaJet, initially developed the technology as a passion project during his final year at Loughborough Design School. What began as a student design concept has since evolved into a high-end, custom-built product that is now available to a select group of underwater enthusiasts and luxury customers. The 2025 version of the CudaJet is the result of significant improvements that have made it more refined, lightweight, and efficient. The redesigned model offers a longer battery life, reduced weight, and enhanced safety features, all of which contribute to its appeal among those seeking a truly unique underwater adventure.
The CudaJet’s latest iteration provides users with a battery runtime of 90 minutes per charge, doubling the original capacity of the early model. This advancement allows for deeper and more extended exploration of the ocean, making it an ideal choice for those interested in diving beneath the surface for longer periods. Additionally, the device has been optimized to operate at a maximum depth of 131 feet, with a top speed of 10 feet per second or approximately 6.7 mph. These performance metrics, while seemingly modest on land, translate to an exhilarating experience underwater, where the sensation of movement is amplified by the water’s properties.
With a weight of just over 30 pounds, including the harness, the CudaJet is significantly lighter than its predecessor. This reduction in weight has been achieved through advanced materials and design improvements, making the jetpack more responsive and easier to control. The harness, which is attached to the torso, comes in four different sizes, allowing for a customized fit that enhances comfort and usability. Safety is also a key consideration in the design, as each CudaJet includes a factory-set safety depth of about 10 feet, which can be adjusted up to the maximum depth of 131 feet. If users exceed their set depth limit, the motor automatically cuts out, and the device floats the user back to the surface, ensuring their safety in case of unexpected circumstances.
The CudaJet is positioned as a luxury product, targeting a niche market of superyacht owners and underwater adventure seekers who seek unique experiences and high-end technology. Each jetpack is made to order, with a personalized customization process that includes selecting the preferred finish and fitting the harness to the user’s specifications. Handcrafted in the U.K., the 2025 model starts at a price point of around $31,000, which includes a two-year warranty, a luxury hard case, and a fast charger. For those interested in an even more exclusive version, the Founder’s Edition is available, featuring lifetime product access, in-water training with the founder, and a lifetime warranty, with only 20 units available.
The development of the CudaJet from a student project to a commercial product highlights the potential of design innovation in transforming everyday experiences into extraordinary ventures. As the technology continues to evolve, it is likely to have broader applications beyond personal recreation, potentially contributing to scientific research, marine exploration, and environmental monitoring. Whether used for leisure or professional purposes, the CudaJet represents a significant advancement in underwater mobility, offering a glimpse into the future of ocean exploration.