Kratos Speed-Air 2 Full Body Harness - 2 Attachment Points and Elastic Upper Webbing

Kratos Speed-Air 2 Full Body Harness

The Kratos Speed-Air 2 is a 2-point full body harness designed for construction operatives, scaffolders, and steel erectors who wear a harness throughout a full working shift and need a combination of comfort, quick donning, and built-in post-fall identification. The dorsal and sternal D-rings cover the two standard fall arrest connection configurations used across scaffolding, aerial lift, and structural steelwork applications.

Three features separate this harness from basic 2-point alternatives in the same category. The elastic webbing in the upper section reduces the restriction felt during active movement and provides a degree of impact energy absorption that non-elastic webbing cannot offer. The soft padding on the thigh straps reduces pressure and discomfort during extended wear, which directly affects how correctly the harness is adjusted and worn throughout the day. The fall indicator labels fitted to both the thigh straps and the dorsal strap give an immediate visual confirmation of whether the harness has been subjected to a fall arrest load, supporting PUWER inspection without requiring detailed technical knowledge from the person carrying out the pre-use check.

Why Choose the Kratos Speed-Air 2 Full Body Harness

• Elastic upper webbing: the elasticated section in the upper body allows the operative to move more freely without the webbing pulling tight across the shoulders and chest during bending, reaching, and lifting movements. This is the primary reason the Speed-Air 2 is rated for frequent and intensive use compared to standard non-elastic harnesses in the same price bracket.

• Fall indicator labels on thigh and dorsal straps: the labels are fitted to the straps most likely to show load in a fall arrest event. If the indicators have activated, the harness must be withdrawn from service immediately. Having indicators on multiple strap positions gives greater confidence that any fall arrest load has been detected, regardless of the direction of fall.

• Padded thigh straps: soft padding distributes the strap contact load more evenly across the thigh during suspension and extended wear. On sites where operatives wear a harness for six to eight hours, thigh strap padding is a meaningful factor in whether the harness continues to be worn correctly adjusted throughout the day.

• Automatic buckles on thigh and chest straps: fast, correct donning with one-click connection on the straps most commonly misadjusted or rushed on site. Combination buckles with downward adjustment on the shoulder straps provide secure load adjustment without accidental release.

• 140kg rated: covers the full combined weight of the operative including tools, clothing, and equipment for the applications this harness is designed for.

What's Included

One Kratos Speed-Air 2 full body harness in size M-L with dorsal D-ring, sternal D-ring, elastic upper webbing, padded thigh straps, automatic buckles on thigh and chest straps, combination buckles on shoulder straps, and fall indicator labels on thigh and dorsal straps.

 Specifications

 Compatibility

Who Is This For?

Construction operatives, scaffolders, steel erectors, and maintenance engineers who wear a harness throughout a full working shift and need a comfortable, quick-donning harness for frequent and intensive use. Specified by safety managers who need built-in fall indicator labels to simplify PUWER post-incident inspection across a large operative workforce.

Typical Applications

• Scaffolding erection and dismantling requiring full-shift harness wear

• Structural steelwork installation on elevated frames and structures

• Aerial lift and cherry picker operations requiring dorsal or sternal connection

• Construction work on facades and elevated slabs

• Fixed ladder access and lattice metallic structure work

• Any application where the harness is worn for extended periods and comfort affects compliance

How frequently do I use my harness?

How to Use

1. Check the fall indicator labels on both thigh straps and the dorsal strap before every use. If any indicator has activated, withdraw the harness from service immediately.

2. Inspect all webbing, buckles, and both D-rings for cuts, abrasion, deformation, and corrosion.

3. Hold the harness by the dorsal D-ring and shake it out to ensure no straps are twisted.

4. Slip on the shoulder straps and connect the chest strap automatic buckle. The elastic upper webbing will flex to accommodate the movement.

5. Pull each thigh strap under the leg and connect the automatic buckle. Confirm both are fully locked.

6. Adjust shoulder combination buckles so the dorsal D-ring sits between the shoulder blades. Adjust thigh straps so the padded sections sit comfortably across the upper thigh.

7. Connect the fall arrest device to the appropriate D-ring before approaching the fall risk area.

Which size do I need? How heavy am I? 

The chart hereunder indicates the body s measures. For the wearing of a harness over clothing, the harness adjustments allow to obtain the right size.

Which attachments do I need?

Attachments points:

Safety and Maintenance

Before every use:

• Check all three fall indicator labels: both thigh straps and the dorsal strap

• Inspect all webbing for cuts, abrasion, chemical staining, and UV degradation

• Confirm both D-rings are undamaged and free from deformation

• Check all buckles open, close, and lock correctly

During use:

• Never connect a fall arrest device to any point other than the dorsal or sternal D-ring

• Never use as a work positioning device without a separate EN 358 belt

• Do not exceed 140kg total user weight including all tools and equipment

After use and storage:

• Clean with mild soap and warm water if contaminated, dry naturally away from heat

• Store away from UV, chemicals, sharp objects, and heat sources

• Annual formal inspection by a competent person required under PUWER

• Withdraw from service immediately after any fall arrest event

Frequently Asked Questions

Q: What are the fall indicator labels on the harness and where are they positioned?

 A: The Speed-Air 2 has fall indicator labels fitted to the front thigh straps and the dorsal strap. Before every use, each label must be checked for activation. If the indicator shows that a fall arrest load has been applied to that strap, the harness must be withdrawn from service immediately and not returned to use. Having indicators on multiple strap positions provides greater confidence that any fall arrest event has been detected, regardless of the direction or nature of the fall. This feature simplifies the PUWER pre-use inspection process significantly for safety managers managing a large harness fleet.

Q: What does the elastic upper webbing actually do?

 A: The elastic webbing in the upper section of the harness stretches to accommodate the body movements made during active work at height: bending, reaching, climbing, and lifting. A non-elastic harness pulls tight across the shoulders and chest during these movements, which is uncomfortable and can lead operatives to loosen adjustments during the day. The elastic section also absorbs a small amount of shock during sudden movement, which adds to the overall comfort during intensive use. This is the primary reason the Speed-Air 2 is specified for frequent and intensive use rather than occasional use.

Q: How does the Speed-Air 2 differ from the Kratos Akros 1 full body harness?

 A: Both are 2-point full body harnesses certified to EN 361:2002 with automatic buckles, dorsal and sternal D-rings, and 140kg ratings. The Speed-Air 2 adds three features the Akros 1 does not have: elastic upper webbing for greater freedom of movement, soft padding on the thigh straps for extended comfort, and fall indicator labels built into the harness straps themselves. The Speed-Air 2 is the correct choice for operatives wearing a harness throughout a full shift in active working conditions. The Akros 1 is a well-specified standard harness for regular site use where these additional comfort and inspection features are not required.

Q: Why does the combination buckle on the shoulder straps use downward adjustment?

A: The combination buckle with downward adjustment on the shoulder straps provides secure adjustment that cannot accidentally release during upward movement or when the operative reaches above their head. Standard buckles can loosen if the webbing is pulled upward during certain movements. Downward adjustment buckles lock more securely under the loading direction most likely in fall arrest, which is a deliberate design choice for a harness rated for frequent and intensive use.

Q: Can this harness be used for work positioning as well as fall arrest?

 A: No. The Speed-Air 2 is certified to EN 361 for fall arrest only. It does not have lateral attachment points or an integrated EN 358 belt. Work positioning requires a separate EN 358 certified belt or a harness with combined EN 361 and EN 358 certification and lateral D-rings. If both fall arrest and work positioning are required for the same task, specify a harness with lateral D-rings alongside a work positioning lanyard.

Q: What size is the M-L harness and is it suitable for use over bulky site clothing?

 A: The M-L size covers the majority of UK site operatives. All shoulder, chest, and thigh straps are fully adjustable and the elastic upper webbing accommodates the additional bulk of winter site clothing, waterproofs, and hi-vis jackets within the adjustment range. If the user is regularly at the upper end of the M-L size range or wears particularly bulky layering, the L-XXL variant should be considered.

Q: Why order from CMT Group?

 A: CMT Group has supplied height safety PPE to UK construction sites since 2010, with a fleet of over 100 FORS Silver accredited vehicles covering 90% of the UK mainland. The Kratos Speed-Air 2 Full Body Harness is available for next working day delivery on orders placed by 7pm. CMT is a BSIF Registered Safety Supplier. Trade accounts, volume pricing, and EDGE portal access are available for safety managers and procurement teams managing height safety PPE across multiple projects.