Combat Economy Positioning Harness
Frontline's Combat Series harness is the economy go-to that crews keep stocking: safety-orange polyester webbing, universal sizing that fits most users, and the OSHA and ANSI compliance every site walk verifies. The 100VTB-UN-3D adds two side hip D-rings to the standard dorsal anchor so the same economy harness handles fall arrest plus work positioning - without the front sternal D-ring of the 4D variant.
Safety orange polyester with alloy steel (golden yellow / silver galvanized finish) hardware. Rated to a 310 lb capacity and 5,000 lb breaking strength. Compliant with ANSI Z359.11-2014 and A10.32-2004 and OSHA 29 CFR 1910 and 1926. Sold as a 2-pack — two complete harnesses ship together for $129.
Who Needs This Product
This product is a personal fall protection full body harness. It is used as the wearer-side component of a personal fall arrest system (PFAS), a work positioning system, or a fall restraint system. Pair it with a compatible energy-absorbing lanyard or self-retracting lifeline (SRL) and a certified anchor rated to 5,000 lb. The harness is not a complete fall arrest system on its own.
Features
Three-D-ring positioning layout
Dorsal for arrest plus two side hip D-rings for work positioning on one economy harness.
Safety orange polyester webbing
High-visibility color helps the harness stand out on the site walk and during pre-shift inspection.
Tongue buckle leg straps
Adjusts fast with gloves on; sets length once at the start of the shift.
Adjustable shoulder and grommeted leg straps
Dialed-in fit across the torso and legs for a multi-user crew bag.
Universal sizing fits most users
One SKU covers most of the crew, which simplifies the storeroom rotation.
310 lb working capacity
Includes worker, clothing, tools, and harness combined per ANSI.
Technical Specifications
| Series | Combat |
|---|---|
| SKU | 100VTB-UN-3D |
| Rated user capacity | 310 lb (worker, clothing, tools, and harness combined) |
| Breaking strength | 5,000 lb |
| Webbing material | Safety orange polyester |
| Webbing width | 1.75 in |
| Stitching | High-tenacity polyester |
| Hardware | Alloy steel (golden yellow / silver galvanized finish) |
| D-rings | Dorsal (primary fall arrest anchor between the shoulder blades); Side (hip) (two side d-rings for work positioning and restraint on the integrated belt) |
| Weight | 3.3 lbs |
| Available sizes | UN (Universal - fits most users) |
| ANSI standard | Z359.11-2014; A10.32-2004 |
| OSHA alignment | 29 CFR 1910 Subpart I; 29 CFR 1926 Subpart M |
Capacity and free fall. The 310 lb capacity includes the worker plus clothing, tools, and harness combined. Maximum free fall for a personal fall arrest system is 6 ft per OSHA 1926.502 when anchored at the dorsal D-ring. Calculate fall clearance for every setup before tying off.
Compliance Standards
ANSI Z359.11-2014
American National Standards Institute fall protection standard for this product class.
ANSI/ASSP A10.32 A10.32-2004
Fall protection systems for construction and demolition operations.
OSHA 29 CFR 1926
Subpart M construction industry fall protection (1926.500-503).
OSHA 29 CFR 1910
Subpart I general industry walking-working surfaces and PPE.
Typical Applications
Donning Overview
Single-operator donning per the Frontline user manual. Always refer to the manual for the full procedure.
- Inspect. Run the harness through a pre-use inspection: webbing, hardware, stitching, labels, fall indicators.
- Orient. Hold the harness up by the dorsal D-ring. Shake the leg straps free so they hang clean.
- Shoulders. Slip both arms through the shoulder straps with the dorsal D-ring centered between the shoulder blades.
- Chest. Connect the chest buckle. Adjust so the strap sits 6 to 8 inches below the collarbone.
- Legs. Pass each leg strap under the thigh and connect at the leg buckle. Tighten until two fingers fit between strap and thigh.
- Tighten. Adjust shoulders, chest, and legs evenly. The dorsal D-ring should rest between the shoulder blades, not riding up the neck or down the lower back.
Inspection and Retirement
Inspect every component before each use. A competent person inspects formally on a documented interval, typically every 6 months under ANSI Z359.2. Pull the equipment out of service for any of the conditions below.
- Webbing: cuts, burns, abrasion, chemical attack, broken threads, loose stitching.
- Hardware: cracks, deformation, sharp edges, corrosion, improper function of buckles and D-rings.
- Stitching: cut, broken, or loose stitches; pulled threads at any load point.
- Labels: legible and intact. Date of first use recorded.
- Fall indicators: any deployed or stretched indicator pulls the equipment out of service immediately.
- Connectors and hooks: gates close fully under spring tension; latches lock; no rollout exposure.
Retirement triggers: any deployed fall indicator, any equipment involved in a fall event, any chemical exposure outside the manufacturer-published list, or any condition where the inspector cannot positively verify the equipment is fit for service.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
Frontline 100VTB-UN-3D Submittals and Documentation
Frontline 100VTB-UN-3D Spec Sheet (PDF)Dimensions, weights, materials, hardware, and the full feature and compliance summary. Frontline 100VTB-UN-3D User Instruction Manual (PDF)Donning, adjustment, inspection, and retirement procedures.Compatible and Related Products
- Combat Economy Positioning Harness - 4 D-Rings (100VTB-UN-4D). Four D-rings: dorsal arrest + front sternal + two side hip.
- Combat Economy Full Body Harness (100VMB). Minimalist economy harness.
- Combat Economy Vest Harness (50VTB). Vest cut.
- Combat American Economy Harness (100VTB-AM). American flag graphic.
Buying Harnesses for a Crew?
Need help specifying the right system for your jobsite? Confirm your application, anchorage, and clearance with us and we will walk through the kit list so the right equipment ships together.
Call 863-703-4522 to talk to a fall protection specialist.
