Gear up for cold conditions in this rugged men's 8" waterproof insulated composite toe boot.
Featuring a composite safety toe cap for protection, 800 grams of Thinsulate™ insulation, and our waterproof SCUBALINER™ to help keep feet dry, this tough-performing boot features a highly durable 90-degree heel with rubber lug outsole and a tough steel shank for extra durability and support.
Key Features of the Carolina CA9528
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Composite Safety Toe Cap — A non-metallic toe meeting ASTM F2413 for impact and compression, with less cold transfer than steel.
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800 Grams of Thinsulate™ Insulation — Cold-weather warmth that keeps working when damp.
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Waterproof SCUBALINER™ — Carolina's sealed waterproof lining system.
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Kharthoum Cigar Leather Upper — Rugged full-grain leather.
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Taibrelle Lined — Moisture-wicking lining under the insulation.
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Removable AG7™ Polyurethane Footbed — Cushioned arch support you can swap out.
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Triple-Rib Steel Shank — Steel spine under the arch for torsional support.
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Electrical Hazard Rated — Tested to withstand 18,000 volts at 60Hz for one minute without leakage.
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Welt Construction — The outsole is stitched to the upper, so the boot can be resoled.
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Rubber Lug Outsole with 90-Degree Heel — Aggressive tread and a defined heel for ladder rungs.
The Insulated 28 Series
This is the CA8528 platform with 800 grams of Thinsulate™ and a Taibrelle lining added. Same welted, resoleable build, same steel shank and composite toe — winterized.
Built to Be Rebuilt
Welt construction stitches the outsole to the upper rather than cementing it. When the lugs wear flat a cobbler can replace them, and you keep the upper you have broken in — which is how a boot at this price earns out over years.
Warmth That Survives Wet Work
Thinsulate™ traps air in microfibers instead of absorbing water, so it keeps insulating when the boot is damp. Paired with the SCUBALINER™ membrane, that covers the two problems winter actually presents: cold and wet.
Why Choose the CA9528?
An 8" waterproof insulated boot with an ASTM-rated composite toe, EH rating, and a welted sole you can rebuild. The pick when you want the 28 Series and you work through the winter.
Similar Styles to Consider
Don't need insulation? The CA8528 is the same boot without it. Prefer a soft toe? The CA8028 is the soft-toe 28 Series. Want a cement-built insulated boot with a 4x4 outsole? See the CA4515 Forrest. Browse the full Carolina collection, or narrow to Carolina Insulated Boots and Carolina Waterproof Boots.
Frequently Asked Questions
What safety standards does the CA9528 meet?
A composite safety toe that meets ASTM F2413 for impact and compression, plus an electrical hazard rating tested to 18,000 volts at 60Hz for one minute without leakage.
How does this differ from the CA8528?
Same 28 Series platform — composite toe, welt construction, steel shank, SCUBALINER™. The CA9528 adds 800 grams of Thinsulate™ insulation and a Taibrelle lining for cold-weather work.
How cold can I work in 800g Thinsulate™?
800 grams is a genuine cold-weather rating, suited to sustained work in freezing conditions rather than brisk movement in mild cold. Insulation interacts with your circulation, sock choice, and how much you move, so treat it as a guide rather than a temperature promise.
What does the triple-rib steel shank do?
It is a ribbed steel plate under the arch that resists twisting on ladders and uneven ground, so the boot supports you on a rung or a narrow edge. The toe cap stays composite, which keeps the front of the boot light and warm.
Can this boot be resoled?
Yes. It is welt-constructed, so the outsole is stitched rather than glued and a cobbler can replace it when the tread wears down.
How should an insulated composite-toe boot fit?
Carolina generally runs true to size — order the size you wear in sneakers, but allow for the heavier sock you'll wear with an 800g boot. The composite cap does not stretch, so size for room across the toes from day one; if you're between widths, take the wider one.
