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Advance Boundless


A stirrup kit is available as an optional extra!

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The BOUNDLESS is a reversible harness that doesn’t have to be turned inside out. With its easy handling, this harness-rucksack system signals a revolution in this category. The resulting sleek design provides comfort and compactness both in the air and on foot. The multifunctional backpack serves as a twin-fit protector element.

Suits your needs

The BOUNDLESS combines the well-established characteristics of our harnesses, and combines them in a novel way. The harness does not invert in the conventional sense, and the zipped-on rucksack with its padding stows in a compartment in the back of the harness. Alternatively, the padding can remain independently in this stowage, and the rucksack can be used separately or detached for replacement.

Relaxed take-off and landing

With a few simple steps you can adjust the BOUNDLESS to your ideal settings and enjoy a high level of comfort while flying, thanks to the compact seatboard design. Easy handling and the colour-coded Easy Connect System ensure trouble-free launch preparation. In addition, you can easily slide back into the harness after takeoff and forward again for a safe landing position.

Ready for all adventures

The BOUNDLESS is a lightweight, comfortable all-rounder with a total weight of 3.8 kg. Highly adaptable, this innovative rucksack solution serves you perfectly for all your different adventures – from the start of your flying career to hike & flys, traveling and thermal flying.


After just three simple actions the BOUNDLESS is ready to go. Open the rucksack, arrange the harness in front of it, stow the rucksack in its pocket under the seatboard, That’s it. This BOUNDLESS system avoids turning anything inside out, and managing it is very much simpler than preparing a traditional reversible harness.


The BOUNDLESS protector system has three parts. There’s an air-foam element (Part 1), a foam element (Part 2) and the rucksack with its built-in back foam (Part 3). Advantages: an obviously more compact volume for the complete harness system, and more storage space in the back pocket. If preferred, the rucksack foam can be taken out and permanently stowed in the protector compartment.



If you’d like a different size rucksack, or need to replace a damaged example, the rucksack is easily separated from the harness by its attachment zip. If you want to store the rucksack in the harness back pocket it is essential that its foam is first removed then stowed in the protector compartment. The helmet net provides extra storage space.


The thin polypropylene seatboard provides a comfortable connection between you and the harness. It gives you helpful glider feedback in flight, and after takeoff lets you slip easily back into the flying position. Before landing it again helps you slide forward for a safe upright landing. The BOUNDLESS extends our product range, and alongside the PROGRESS a reversible harness with seat board is now available.



Pilot height cm 155-172 165-183 178-202
Seatboard width cm 30 31.2 32.8
Seatboard length cm 37.5 40.5 42.5
Carabiner height cm 43 44 45
Chest strap width cm 40-46 41-47 42-48
Rucksack volume l 78 83 90
Harness weight kg 3.80 3.95 4.10
Weight without Backpack kg 3.10 3.25 3.35
Harness certification EN 1651:2018+A1:2020 & NfL 2-565-20 / 120 kg EN 1651:2018+A1:2020 & NfL 2-565-20 / 120 kg EN 1651:2018+A1:2020 & NfL 2-565-20 / 120 kg



Additional information

Postage Weight 4.5 kg
Dimensions 80 × 50 × 50 cm
Harness Type

Lightweight, Open

Pg Brands



Azur Blue, Canary Yellow

Free delivery on orders of £100

Extra fast shipping

30 days returns policy