3M 1101257 Vest-style Safety Harness 3XL 420 Lb

Product Description

The 3M 1101257 is a vest-style full body safety harness engineered for fall protection in commercial and industrial work environments. Designed to support users up to 420 pounds, it features a no-tangle construction that allows the harness to be slipped on and off quickly, reducing donning time during daily work. The lightweight webbing is water-repellant and abrasion-resistant, and all hardware is coated for corrosion resistance. A patented triangular back pad holds the harness shape for easier handling and spreads shoulder strap webbing to reduce neck abrasion during extended wear. Fall protection professionals and general contractors install this harness wherever OSHA-regulated work-at-height tasks are performed.

This harness is suited for residential and commercial construction, industrial maintenance, telecommunications tower work, and any application requiring ANSI-compliant personal fall arrest. The vest-style fit accommodates a wide range of body types and sizes, and the revolving torso adjusters allow on-the-fly fit correction. Impact indicators on the webbing provide a clear visual cue during pre-use inspection, simplifying compliance documentation for safety supervisors. Integrated suspension trauma straps are included to reduce the risk of suspension trauma while awaiting rescue after an arrested fall.

Key Features

• Rated for users up to 420 pounds with adjustable fit for a wide range of body sizes
• Stand-up back D-ring for fall arrest anchor attachment
• Low-profile suspension trauma straps integrated between harness webbing
• Revolving torso adjusters for quick fit adjustment
• Integrated auto-setting lanyard keepers prevent lanyard drag and entanglement
• Impact indicators allow fast visual inspection of webbing integrity
• Corrosion-resistant hardware with water-repellant, abrasion-resistant webbing

Compatibility

Designed as an OEM-style personal fall arrest harness compatible with standard snap hooks, self-retracting lifelines, and energy-absorbing lanyards used in ANSI Z359-compliant fall protection systems.

Installation Notes

This harness must be fitted and inspected by a qualified person before each use in accordance with OSHA 29 CFR 1926.502 and ANSI Z359 standards. Power down or de-energize any electrical equipment in the work zone before donning fall protection near live circuits. Inspect all webbing, hardware, and labels for damage, wear, or impact indicator activation prior to each use — retire the harness immediately if any defect or impact event is identified. Consult the manufacturer documentation for proper donning sequence, adjuster settings, and rescue planning requirements.

Technical Specifications

• Maximum User Capacity: 420 pounds
• Size: 3X-Large
• Style: Vest
• Hardware Finish: Coated, corrosion-resistant
• Webbing: Water-repellant, abrasion-resistant
• Weight: 3.7 pounds
• UPC: 840779004546

Standard Information

• Brand: 3M
• Manufacturer Part Number: 1101257