Bruno Lo 5" Carbon Composite Toe Waterproof Work Boot
Fortified with a carbon composite safety toe cap and our waterproof SCUBALINER™, they feature our removable AG8™ footbed for comfort and an oil- and slip-resisting rubber outsole.
Key Features of the Carolina CA5522
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Carbon Composite Fiber Toe Cap — Carbon fiber weave cuts toe-cap weight while meeting ASTM F2413 for impact (I/75) and compression (C/75).
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Electrostatic Dissipative (SD) — Absorbs and neutralizes loose electrons, channeling static charge into the floor. Meets the ASTM F2413 SD requirement.
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Bandit Potting Soil Leather Upper — With abrasion-resistant leather at the toe and heel.
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Waterproof SCUBALINER™ with Mesh Lining — Waterproof, and breathable against the foot.
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Removable Polyurethane Footbed — Comes out if you wear orthotics.
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Pillow Cushion™ Insole & EVA Midsole — Layered shock absorption.
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Non-Metallic Shank — Composite support with no steel in it.
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Cement Construction — A bonded sole that keeps the boot light and flexible.
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Slip-Resisting Rubber Outsole — Oil- and slip-resisting tread.
ESD and EH Are Not the Same Thing — and This Boot Is ESD
An electrical hazard (EH) boot insulates you from a live circuit. An electrostatic dissipative (SD) boot does the opposite: it conducts static charge off your body and into the floor at a controlled rate. The two are mutually exclusive under ASTM F2413, and the CA5522 is SD.
That makes it right for electronics assembly, cleanrooms, munitions handling, fuel work, and anywhere a static discharge could damage components or ignite vapor. It makes it wrong for work around energized circuits. If you need EH, the composite-toe CA5521 carries that rating instead.
Why Carbon Fiber
A carbon fiber weave hits the same ASTM impact and compression thresholds as steel or standard composite at lower weight. On a 5" boot built for long shifts on a floor rather than heavy site work, that weight saving is the whole point.
Why Choose the CA5522?
A light, waterproof, safety-toe boot for static-sensitive environments — the only Bruno with an SD rating.
Similar Styles to Consider
Need EH protection instead of SD? The CA5521 is the insulated, EH-rated composite-toe Bruno. Prefer no safety toe? See the CA5021. Browse the full Carolina range at Overlook Boots.
Frequently Asked Questions
Is the CA5522 electrical hazard rated?
No. The CA5522 is electrostatic dissipative (SD), which is the opposite property. An SD boot is designed to conduct static charge to ground; an EH boot is designed to insulate you from a live circuit. Do not treat this boot as EH protection.
What is an ESD boot for?
Environments where a static discharge is the hazard: electronics manufacturing and repair, cleanrooms, powder handling, fuel and solvent work, munitions. The boot bleeds off the charge your body builds up walking across a floor.
Can I replace the footbed with my own orthotic?
The footbed lifts out, but SD footwear needs care here. In an SD-necessary environment, a replacement insole must itself be static-dissipative, and even then the boot may no longer test SD. Verify with your safety officer before swapping it.
Is the CA5522 true to size?
Carolina generally runs true to size — order your sneaker size. The Bruno's broad last leaves room across the forefoot.
Is it insulated?
The CA5522 is waterproof and uninsulated, which makes it comfortable across three seasons. The CA5521 adds 400 grams of Thinsulate™ if you need warmth.
How does cement construction affect the boot?
The sole is bonded directly to the upper rather than stitched through a welt, which keeps this the lightest boot in the Bruno line and lets it flex from the first day, with no break-in underfoot.
