FallTech FT-One Ultra-Lite Harness — 3D Construction Belted (8131 / 8131QC)

FT-One Ultra-Lite 3D Construction Belted Full-Body Harness — Available with Tongue Buckle or Quick-Connect Legs

The FT-One Ultra-Lite is FallTech's lightest, most advanced harness, built to deliver unmatched comfort and mobility. Over 2 pounds lighter than the original FT-One, its weightless engineering reduces fatigue while maximizing freedom of movement. Titanium D-rings cut weight without sacrificing strength. A minimized-contact design, vented padding, and breathable webbing keep workers cool all day. With next-gen, high-strength webbing, the Ultra-Lite sets a new benchmark in performance. Once you wear it, there's no going back.

Available Configurations

• Sizes: XSmall, Small, Medium, Large, XLarge, 2XLarge, 3XLarge
• Leg Closure: Tongue Buckle (TB) Legs / QC Chest, or Quick-Connect (QC) Legs / QC Chest
• D-Ring Configuration: 3 D-rings (1 dorsal, 2 hip) with integrated construction belt for tool and gear support

Key Features

• The lightest and most advanced premium safety harness on the market — over 30% lighter than other harnesses in its segment.
• Minimized-contact design uses contoured straps to reduce bulk and surface contact, improving mobility and keeping the harness cooler against the body.
• High-breathability webbing is three times stronger than traditional webbing while featuring enhanced UV- and abrasion-resistance.
• Industry-first titanium D-rings are lighter, stronger, and more corrosion-resistant than either steel or aluminum.
• Low-contact gel padding reduces friction, pulls heat away from the body, and promotes airflow to keep workers cooler and drier throughout the day.
• Vented lateral Comfort Legs® straps cool areas where heat builds, flex naturally with movement, and neutralize common pinch points for better all-day mobility.
• Perforated shoulder pads use a raised airflow structure to resist heat, moisture, and bacteria.
• Rugged yet lightweight vented waist pad distributes weight efficiently so the harness supports your work without adding unnecessary bulk.
• Soft neoprene-lined neck guard prevents abrasion to keep comfort front and center on every climb.
• Slim-profile trauma relief packs help reduce pressure during suspension and improve balance and stability during rescue situations.
• Complies with ANSI Z359.11-2021, OSHA 1910.140, and OSHA 1926.502.

Performance Detail

Material Specs

MFG Part #

8131 (Tongue Buckle Legs) or 8131QC (Quick-Connect Legs) — exact SKU shown for the selected size and connection on the variant selector above.