Advance Strapless 4 harness (v2025)

Ultra-light harness

The latest generation of our ultra-light harness, refined to meet the highest standards in hike-and-fly and mountaineering. Thanks to its new inflatable protection, improved speed bar, and two sizes, the STRAPLESS 4 is now even more versatile, without compromising on weight, comfort, or simplicity. The STRAPLESS 4 is now certified up to 120 kg.

STRAPLESS 4 - even more versatile 

• Two sizes (M and L): for a better fit and a wider target audience.
• New inflatable protector: ultra-lightweight (220 g), easy to handle, and optional for mounting.
• Improved throttle system: for greater comfort across the entire throttle range
• More ergonomic seating design: thanks to 3D shaping and optimized leg pads
• Optimized design of the waist strap: makes takeoff easier 
• New step-in-aid for the throttle: for easier access to the throttle
• Edelrid AURA carabiners: featuring a new lightweight anti-twist element

ENHANCED OVERALL COMFORT

Significant improvements have been made to the STRAPLESS to make the seat more ergonomic and significantly enhance overall comfort. In addition, the ultra-light harness features a new speed bar guide for better pressure distribution and a longer travel.

INFLATABLE AND LIGHTWEIGHT

Along with the STRAPLESS 4, we are launching ADVANCE’s first inflatable protector, which is available as an optional accessory. It weighs just 220 g—exactly the same as the STRAPLESS 3’s airbag—but offers more comprehensive protection, as it is already inflated at takeoff.

Optional: Proven protection with the innovative FLOWBAG for easy filling

Along with the STRAPLESS 4, we’re launching ADVANCE’s first inflatable airbag. Inflating it has never been easier thanks to the new FLOWBAG inflation bag, which weighs just 33 grams. It takes just two FLOWBAG inflations to fully inflate the airbag. To inflate the FLOWBAG, simply blow lightly into the bag twice with your mouth from a distance of 20 cm—it couldn’t be easier. It is also possible to inflate the protector directly with your mouth, but for hygiene reasons, we recommend using the FLOWBAG, which is included with the protector.

Important: The new protector is not compatible with the STRAPLESS 3, but fits both sizes of the STRAPLESS 4.

Features

Comes with