ULTRALIGHT MOUNTAINEER / ULTRALIGHT HARNESS

The STRAPLESS 4 is the latest generation of our proven ultralight harness, further developed to meet the highest demands of Hike & Fly and mountaineering pilots. With a new inflatable protector, an improved speed system, and availability in two sizes, the STRAPLESS 4 offers even greater versatility — all without compromising on weight, comfort, or simplicity. This newest version is now certified up to 120 kg, making it stronger and more adaptable than ever.

INCREASED OVERALL COMFORT

Key optimizations have been made to the STRAPLESS 4 to improve ergonomics and enhance comfort in flight. The seat shape has been redesigned to better support the pilot’s posture, resulting in a more natural and relaxed seating position. The updated speed system also features new accelerator routing for smoother operation, improved pressure distribution, and increased travel for more efficient acceleration.

INFLATABLE AND LIGHT

With the STRAPLESS 4, ADVANCE introduces its first inflatable protector, available as an optional add-on. Weighing just 220 g, the new protector matches the weight of the STRAPLESS 3 airbag but provides immediate protection from the moment of launch. This innovation delivers reliable safety without adding unnecessary bulk, keeping the overall setup exceptionally light for mountain and hike & fly use.

SIZE CHART

STRAPLESS 4		M	L
Pilot height	cm	155-185	178-202
Chest strap width	cm	~39	~42
Harness weight	kg	0.235	0.255
Weight carabiners	kg	0.062	0.062
Weights speed system	kg	0.030	0.030
Protector weight	kg	0.220	0.220
Airbag certification		NfL 2024-2-785	NfL 2024-2-785
Harness certification		EN 1651:2018+A1:2020 / 120 kg	EN 1651:2018+A1:2020 / 120 kg

MATERIALS

Main straps	D-Pro, 4mm, 13kN
Leg straps	D-Pro, 4mm, 13kN
Outer covering	Skytex 38 universal
Seat area	Nylon 40 BE - DE R/S

SCOPE OF DELIVERY

2 Edelrid AURA Carabiners incl. anti-twist LITE
Accelerator incl. Step-in-Aid
Storage bag

Optional:

Inflatable protector ($300)

Advance Strapless 4 Ultralight Harness

Size

Inflatable Protector