This excellent all-around boot combines a durable yet lightweight construction with a zipper for added convenience.
The Subframe CA5550 is a 6" waterproof composite-toe work boot with a side zipper for easy on-and-off, a composite safety toe, and Carolina's waterproof SCUBALINER™.
Key Features of the Carolina CA5550
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Composite Safety Toe — Non-metallic toe meeting ASTM F2413 I/C, with reduced cold transfer.
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Side Zipper — Easy on-and-off without re-lacing.
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Waterproof SCUBALINER™ — Carolina's sealed waterproof membrane keeps feet dry.
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Utopia Dark Coffee Leather Upper — Durable leather in a lightweight build.
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Removable Dual-Density EVA Footbed — Cushioned support over an EVA midsole.
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Non-Metallic Shank — Composite shank, with no steel underfoot.
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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.
Lightweight, Convenient, and Dry
A side zipper makes for quick on-and-off, a composite toe protects without steel's weight, and the sealed SCUBALINER™ membrane keeps feet dry.
Lace Once, Zip Every Day
The zipper is the point of this boot. You set the lace tension once to your foot, then get in and out with the zip — no working the laces loose at the end of a shift and re-tightening them the next morning.
Why Choose the CA5550?
A lightweight, waterproof, composite-toe boot with a convenient side zipper for all-around work.
Similar Styles to Consider
Prefer an 8" height? See the Subframe CA5552. Browse the full Carolina collection at Overlook Boots.
Frequently Asked Questions
What's the point of the side zipper?
You set your lace fit once, then use the zipper to get in and out — no re-lacing at the start and end of every shift. It's a real time-saver if you take boots off for breaks, prayer rooms, or clean areas.
Is this boot metal-detector safe?
No. The composite toe and non-metallic shank keep steel out of the toe and the sole, but the side zipper is metal. If you need footwear that clears a metal-detector access point, this isn't the boot — look at Carolina's fully non-metallic lace-up composite styles instead.
Why choose a composite toe over steel?
It's lighter and doesn't conduct cold or heat into the toe box, while meeting the same ASTM F2413 I/C impact and compression standard as steel.
How does cement construction affect the boot?
The outsole is bonded directly to the upper rather than stitched through a welt, which keeps the Subframe light and flexible from the first day, with no break-in underfoot.
