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Serious XC & Competition

Serious XC & Competition

  • World’s first full cockpit fairing harness
  • Ram-air design, no fans or batteries
  • Envelope redesigned and updated in 2024
  • Immediately deflates when knees are bent, for safety
Serious XC & CompetitionSerious XC & Competition

Product Info

Low-drag, high-performance harness for serious XC & Competition

Product Info

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The Sub Project

The Sub Project

The submarine is a low-drag, high-performance harness for serious XC and Competition flying. It is the result of a 5-year development process which included extensive testing, wind-tunnel research, and a prolonged beta phase with cooperation from some of the world’s top competition pilots.

Proven Performance

Proven Performance

The Submarine’s performance and comfort has now been thoroughly proven in the highly competitive PWC circuit. We thank the pilots who assisted us during the multi-year development process. The Submarine has won virtually every major event since its release.

New Envelope

New Envelope

The 2024 version of the Submarine represents the ultimate in harness drag reduction. We listened to your feedback and made the collar adjustable, improved the instrument panel, increased fabric opacity for a cooler ride, and improved inflation and durability. Overall, it’s significantly more comfortable and more efficient!



The Submarine is now in general production. To get yours, please ask your local Ozone dealer. This is a highly technical harness to produce, so we ask pilots for their patience as the team in production work to fulfil the orders as fast as possible.

User Manual

Envelope Replacement Tutorial

Product Gallery

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pilot height range (cm)
total weight of all parts (kg)
Load Test: Max Weight
EN certification

* Weights may vary up to 50gm per size due to slight variations in the manufacturing of the fabric used.

Optional Spare Parts / Components:

  • Submarine structure comprising seats, inside storage and rescue pockets
  • Submarine envelope (the airtight skin of the submarine)
  • Wood seat plate
  • Pair of back bars
  • Main Cockpit, 4.5 liters
  • Instrument plate
  • Rescue handles
  • Foot Plate
  • 3 one-foot Speed bar
  • Foot cubes, 3 different sizes, to adapt the various foot-plate to envelope nose distance
  • Back Foam
  • Submarine protector
  • Exoceat Cockpit. Adaptable to the Submarine and offering slightly more volume storage. It could restrict the leg movement while catching the speed bar, depending on the various settings
  • Additional front cockpit. It can be attached to the main cockpit Offering 2 liters more of storage with easy access from the top envelope zip. Can also contain an anti-G chute

Designer's Note

  • Low profile fully inflated envelope with foam-filled dynamic pressure air intake.
  • Low parasitic drag once inflated and set in position.
  • High parasitic drag once fully open and piloted in an upright position, offering Anti-G characteristics for descent.
  • Immediately deflates after bending your legs in case of strong turbulence or wing collapse.
  • Good yaw stability at all speeds.
  • Good instrument visibility in most light.
  • Balanced agility and roll stability.
  • Fully self-supported seat and foot plate, refined from the Exoceat.
  • Adjustable pitch angle with easily adjustable webbing and multiple fore & aft ballast pockets.
  • Two side rescue containers with easy extraction.
  • Features the innovative Neo Koroyd back protector.
  • Large “flight deck” is fully adjustable in pitch angle.
  • Main cockpit is 4.5 Liters volume with two front outside pockets.
  • Optional extra cockpit, 2.0 Liter.
  • Under seat storage, 1.0 Liter.
  • Two Side pockets, 1.5 liter each.
  • Two upper pockets, 0.6 liter each.
  • Back storage, 13 liters, including 2 liter drinking pocket.
  • Competition speed bars with 3 one-foot steps, fully settable to any wing configuration.
  • Huge potential range of speed bar to be compatible with wings using the longest speed systems.


Video ManualVimeo
Download Manual
Envelope Replacement TutorialVimeo
Download Manual


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