Our men’s 8” insulated waterproof carbon composite toe work boot offers safety and versatility for a variety of jobs.
It's built with 440 grams of Thinsulate™ and X-Static odor-resistant insulation for comfort in harsh, cold conditions, over Carolina's AG8™ footbed and sealed SCUBALINER™ membrane.
Key Features of the Carolina CA5547
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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 waterproof membrane keeps feet dry.
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440g Thinsulate™ & X-Static Odor-Resistant Insulation — Warmth plus odor control for cold conditions (Thinsulate™ is a 3M trademark).
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Cowboy Teak 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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Non-Metallic Shank — Composite support with no steel in it.
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Electrical Hazard Rated — Up to 18,000 volts at 60Hz for one minute without leakage.
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Cement Construction & Oil/Slip-Resisting Rubber Outsole — Lightweight, dependable traction.
Warm, Dry, and Protected
Thinsulate™ insulation with an X-Static odor-resistant mesh lining keeps feet warm and fresh, the sealed SCUBALINER™ membrane keeps water out, and a carbon composite toe protects without steel's weight or cold transfer.
Choosing an Insulation Weight
440 grams is a true winter weight without going to the extreme. It suits cold-weather work where you're moving — your own activity supplies part of the heat. For milder conditions, an uninsulated boot breathes better; for standing still in deep cold, look to 600g and above.
All-Day Comfort
A removable AG8™ Intelli/Sphere dual-density footbed cushions each step through long, cold shifts.
Why Choose the CA5547?
A warm, waterproof, carbon composite-toe boot for cold, harsh conditions.
Similar Styles to Consider
Don't need insulation? See the 8" Duke Carbon CA5543, or the 6" CA5540. Browse the full Carolina collection at Overlook Boots.
Frequently Asked Questions
What widths does the Duke 8" insulated come in?
Carolina offers this style in medium (D) and extra-wide (2E) widths, in men's sizes 8–14.
How cold can I wear this boot?
Its Thinsulate™ insulation is a winter-grade weight suited to cold-weather work — warm enough for freezing conditions during active work without the bulk of the heaviest expedition-style insulation. The X-Static lining also resists odor buildup, which matters in an insulated boot worn all day.
Is a composite toe better than steel in winter?
For cold work, yes — carbon composite doesn't conduct cold into the toe box the way a steel cap does, so your toes stay noticeably warmer in freezing temperatures while getting the same ASTM F2413 I/C protection.
How does cement construction affect the boot?
The outsole is bonded directly to the upper rather than stitched through a welt, which keeps an insulated boot light and lets it flex from the first day, with no break-in underfoot.
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.
