Product Overview

The 3M DBI-SALA ExoFit X100 Comfort Construction Climbing/Positioning Safety Harness combines fall arrest, climbing, and work-positioning capabilities in one rugged, comfortable full-body harness.

This configuration features four attachment points: one dorsal back D-ring, one front/sternal D-ring, and two hip D-rings. This allows the harness to support several types of properly configured fall-protection systems without requiring workers to change harnesses when transitioning between climbing, fall-arrest, and positioning tasks.

The dorsal D-ring provides a connection point for appropriate fall-arrest systems. The front/sternal D-ring supports approved climbing applications, while the dual hip D-rings allow connection to compatible work-positioning equipment.

The X100 is constructed with 6,000 lb polyester webbing, nylon/polyester hybrid comfort padding, and durable alloy-steel hardware to provide the strength and durability required for demanding construction and industrial environments.

A pass-through chest buckle provides a straightforward chest connection, while traditional tongue-buckle leg straps allow workers to achieve a consistent and secure leg adjustment.

For improved comfort during long workdays, this construction configuration includes padding at the back and hips, along with revolving torso adjusters that simplify harness adjustment and help maintain the selected fit.

Additional X100 features include an anti-slide dorsal D-ring pad, an integrated adapter location for compatible personal self-retracting lifelines, low-profile suspension trauma relief straps, and 3M Connected Safety ID technology for equipment identification and inspection management.

Key Features

• Genuine 3M™ DBI-SALA® ExoFit™ X100 safety harness
• Comfort Construction Climbing/Positioning configuration
• Designed for construction, climbing, and work positioning
• Back / dorsal D-ring
• Front / sternal D-ring
• Dual hip positioning D-rings
• 4 total attachment points
• Pass-through chest buckle
• Tongue-buckle leg straps
• Revolving torso adjusters
• 6,000 lb polyester webbing
• Durable alloy-steel hardware
• Zinc-plated steel D-rings
• Back and hip comfort padding
• Integrated body belt
• Hip pad
• Anti-slide dorsal D-ring pad
• Integrated personal SRL adapter location
• Low-profile suspension trauma relief straps
• 3M Connected Safety ID / RFID
• Subpelvic strap
• Gray color
• Available in Small through 2XL
• ANSI/ASSP Z359.11 compliant
• OSHA 1910.140 compliant
• OSHA 1926.502 compliant
• Designed for industrial and occupational use

Why Choose the 3M DBI-SALA ExoFit X100?

Construction workers often perform several different work-at-height tasks during the same day.

A worker may need to climb to an elevated work area, remain protected by a personal fall-arrest system, and then use positioning equipment to work hands-free once they reach the work location.

The ExoFit X100 Construction Climbing/Positioning Harness is designed to support all three applications.

Instead of equipping workers with separate harnesses for climbing, fall arrest, and positioning, this X100 configuration provides the attachment points necessary for each application within one full-body harness.

Its combination of durable construction, comfort padding, multiple D-rings, practical adjustment hardware, and equipment-management features makes it particularly well suited for professional construction and industrial crews who spend significant portions of their workday at height.

Front, Back & Hip D-Ring Configuration

One of the strongest features of this ExoFit X100 configuration is its four-point attachment system.

The dual hip D-rings are especially important for workers using compatible positioning lanyards or positioning systems.

A positioning system can help support a worker at the work location while allowing both hands to remain available for performing the task.

Each attachment point must only be used for applications permitted by the applicable 3M instructions and complete fall-protection system.

Designed for Climbing

The front/sternal attachment point makes this configuration particularly useful for workers who regularly climb fixed ladders, structural systems, towers, equipment, and other elevated access systems.

Depending on the complete fall-protection system, the front connection can interface with approved vertical climbing systems while maintaining a connection close to the worker's centerline.

The dorsal attachment can also support approved climbing applications depending on the connecting subsystem and system configuration.

Designed for Work Positioning

Two hip D-rings allow the X100 to interface with appropriate work-positioning equipment.

Positioning systems are commonly used when workers need to remain supported at an elevated work location while using both hands.

Common examples include:

• Structural construction
• Utility work
• Pole work
• Equipment installation
• Industrial maintenance
• Steel construction
• Elevated mechanical work

Work positioning is not a substitute for fall arrest when exposure to a fall hazard requires an independent fall-arrest system.

Comfort Construction Design

The Comfort Construction configuration adds padding and equipment features intended for workers who wear fall protection for extended periods.

Padding at the back and hips helps distribute contact pressure across the body, while the construction-style body belt provides support for positioning equipment and compatible accessories.

The harness is designed to balance protection, durability, mobility, and comfort for workers who may remain in their harness throughout much of the workday.

6,000 lb Polyester Webbing

The ExoFit X100 uses high-strength polyester webbing rated at 6,000 lb tensile strength.

Polyester is widely used in professional fall-protection equipment because it provides:

• Excellent tensile strength
• Good abrasion resistance
• Low stretch
• Reliable dimensional stability
• Durability in industrial environments
• Resistance to many common environmental conditions

The webbing is combined with polyester stitching and high-strength hardware to create a complete occupational full-body harness.

Pass-Through Chest Buckle

This configuration uses a pass-through chest buckle.

Pass-through buckles provide a secure, proven connection method while keeping the chest hardware relatively simple and lightweight.

The buckle is constructed from high-strength metal components and is designed to remain secure when properly connected and adjusted.

Tongue-Buckle Leg Straps

The leg straps use traditional tongue-buckle adjustment hardware.

Similar to a heavy-duty belt buckle, tongue buckles provide defined adjustment positions that help workers establish a consistent fit every time the harness is worn.

Tongue-buckle legs are especially popular in construction because workers can visually confirm the selected adjustment position.

Revolving Torso Adjusters

The ExoFit X100 uses revolving torso adjusters to help workers quickly adjust the harness around the upper body.

Proper torso adjustment is critical for keeping the dorsal D-ring properly positioned and maintaining an appropriate overall harness fit.

The revolving adjusters make it easier to fine-tune the harness while helping maintain the selected webbing position.

Anti-Slide Dorsal D-Ring Pad

The X100 incorporates an anti-slide dorsal D-ring pad.

Traditional harness D-rings can migrate downward on the worker's back as the harness moves throughout the workday.

The anti-slide design helps reduce unwanted movement of the dorsal D-ring and assists in maintaining the intended attachment position.

Integrated Personal SRL Adapter

The dorsal assembly also provides a convenient integrated adapter location for compatible personal self-retracting lifelines.

This makes the X100 particularly attractive for companies using personal or twin-leg SRLs as their primary fall-arrest connecting subsystem.

Compatible SRLs can be attached at the harness according to the manufacturer's instructions without relying solely on conventional web-mounted attachment arrangements.

Suspension Trauma Relief Straps

The ExoFit X100 includes low-profile suspension trauma relief straps.

Following a fall arrest, a conscious suspended worker may be able to deploy the straps to establish a more supportive standing position while awaiting rescue.

Suspension trauma straps do not replace the need for a complete rescue plan. Employers using personal fall-arrest systems should maintain an appropriate rescue plan and the equipment and personnel necessary to carry it out.

3M Connected Safety ID / RFID

The ExoFit X100 incorporates 3M Connected Safety ID / RFID technology.

The identification technology can help organizations manage:

• Harness inventory
• Equipment assignments
• Inspection records
• Product identification
• Safety equipment tracking
• Recurring inspection programs

This can be especially valuable for larger contractors and industrial facilities managing dozens or hundreds of fall-protection assets.

Ideal Applications

• Commercial construction
• General construction
• Structural construction
• Ladder climbing
• Industrial climbing
• Work positioning
• Steel erection
• Utility work
• Telecommunications
• Industrial maintenance
• Plant maintenance
• Equipment installation
• Manufacturing
• Transportation
• Oil and gas
• Petrochemical facilities
• Refineries
• Power generation
• Elevated equipment maintenance
• General industrial fall protection

Product Specifications

Harness Capacity

3M specifies harness capacity according to the applicable standard or regulation.

Capacity includes the combined weight of the:

• Worker
• Clothing
• Tools
• Equipment
• Other objects being carried

The capacity of the complete fall-protection system is always limited by the lowest-rated component in the system.

For the BigCommerce specification field, I recommend using:

ANSI: 130–310 lb; OSHA: up to 420 lb including worker, clothing, tools and equipment

instead of simply listing 420 lb.

Available Sizes & Manufacturer Part Numbers

Frequently Asked Questions

What is the ExoFit X100 Construction Climbing/Positioning Harness designed for?

This configuration is designed for workers who require fall arrest, climbing, and work-positioning capabilities in one full-body harness.

How many D-rings does this harness have?

The harness provides four attachment points:

• One back/dorsal D-ring
• One front/sternal D-ring
• Two hip positioning D-rings

What is the back D-ring used for?

The dorsal D-ring is primarily used as a connection point for appropriate personal fall-arrest systems and may also support approved climbing configurations.

What is the front D-ring used for?

The front/sternal D-ring can be used for approved climbing systems and other applications permitted by the manufacturer's instructions.

What are the hip D-rings used for?

The two hip D-rings are designed primarily for work positioning with compatible positioning equipment.

Does this harness include a body belt?

Yes. This construction climbing/positioning configuration includes an integrated polyester body belt and hip padding.

What type of chest buckle does it have?

This configuration uses a pass-through chest buckle.

What type of leg buckles does it have?

It uses tongue-buckle leg straps.

Does the ExoFit X100 have an integrated SRL attachment?

The harness incorporates a convenient attachment location at the dorsal assembly for compatible personal self-retracting lifelines.

Always verify compatibility between the harness and SRL before use.

Are suspension trauma straps included?

Yes. Low-profile suspension trauma relief straps are integrated into the harness.

Does the harness include RFID identification?

Yes. The ExoFit X100 incorporates 3M Connected Safety ID / RFID technology for equipment identification and inspection management.

What is the weight capacity?

The harness is rated for 130–310 lb under ANSI requirements and up to 420 lb under OSHA requirements, including the combined weight of the worker, clothing, tools, and carried equipment.

What standards does the X100 meet?

This configuration meets applicable requirements of:

• ANSI/ASSP Z359.11
• OSHA 1910.140
• OSHA 1926.502

What sizes are available?

This exact configuration is available in:

• Small
• Medium
• Large
• X-Large
• 2X-Large

Is an X-Small version available?

No X-Small model is listed for this exact 1401075–1401079 configuration.

If the current BigCommerce product option includes X-Small, I recommend removing it unless Durawear has documentation for an additional manufacturer configuration.

Why buy from Durawear?

Durawear supplies genuine 3M DBI-SALA fall-protection equipment including ExoFit harnesses, self-retracting lifelines, energy-absorbing lanyards, positioning equipment, anchorage connectors, vertical lifeline systems, and confined-space equipment.

Our broad fall-protection selection allows contractors and industrial facilities to source compatible components for complete work-at-height safety systems.