This men’s 6” waterproof carbon composite broad toe work boot offers safety and versatility for a variety of jobs.
These jack-of-all-trades boots feature a carbon composite safety toe cap and our AG8™ footbed for ultimate comfort, with an oil- and slip-resisting outsole for excellent traction.
Key Features of the Carolina CA5540
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Carbon Composite Safety Toe — Lightweight non-metallic toe meeting ASTM F2413 I/C, with reduced cold transfer.
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Waterproof SCUBALINER™ — Carolina's sealed proprietary waterproof lining system.
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Atlantic Real Brown Leather Upper — Durable leather with a rich finish.
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Removable AG8™ Intelli/Sphere Polyurethane Dual-Density Footbed — Premium cushioning with enhanced arch support.
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Mesh Lining — Breathable interior.
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Non-Metallic Shank — Composite support with no steel in it.
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Electrical Hazard Rated — Tested to withstand up to 18,000 volts at 60Hz for one minute without leakage.
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Cement Construction & Oil/Slip-Resisting Rubber Outsole — Light, flexible, with dependable traction.
Lightweight, Versatile Protection
A carbon composite toe protects without steel's weight or cold transfer, and the sealed SCUBALINER™ keeps feet dry across a range of trades.
All-Day Comfort
The removable AG8™ Intelli/Sphere dual-density footbed is Carolina's upgrade over the AG7 — more arch support, and it lifts out if you'd rather use your own.
Why Choose the CA5540?
A lightweight, waterproof, carbon composite-toe boot that works across a range of trades, with nothing metal in its structure to weigh it down.
Similar Styles to Consider
Prefer an 8" height? The Duke Carbon CA5543 is the same boot, taller, with a broad toe. Need insulation? The 8" CA5547 carries 440g. Need an ESD oxford? See the Duke CA5541. Browse the full Carolina collection at Overlook Boots.
Frequently Asked Questions
How is carbon composite different from standard composite?
Both are non-metallic and both meet the same ASTM I/C thresholds. A carbon fiber weave reaches that rating with less material, so the toe cap is lighter and slightly less bulky than a standard composite cap — which is why it shows up on boots meant for walking rather than heavy loggers.
Can I use my own orthotics?
Yes. The AG8™ footbed lifts out. The CA5540 is EH rated rather than static-dissipative, so there's no SD rating to compromise by swapping it — unlike its ESD sibling, the CA5541.
How long does the waterproofing last?
The SCUBALINER™ is a sealed membrane rather than a surface coating, so it doesn't wash off. Conditioning the leather and keeping the seams clean is what keeps it working over the life of the boot.
Is it insulated?
The CA5540 is uninsulated, which makes it a comfortable three-season boot. For cold work, the 8" CA5547 carries 440g of insulation on the same carbon composite platform.
Does the EH rating still apply when the boots are wet?
Treat it as reduced. EH testing is performed under dry conditions; moisture, damp leather, and worn outsoles all degrade insulation. EH footwear is secondary protection — never a substitute for de-energizing a circuit or using primary PPE.
