The EXT CA4551 is a low-profile 5" waterproof carbon composite-toe 4x4 hiker with rugged all-terrain grip — packed with jobsite features in a lightweight, athletic build.
Key Features of the Carolina CA4551
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Carbon Composite Safety Toe — Lightweight carbon-fiber 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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Buff Crazy Horse Olive Leather & Mesh Upper — Rugged, breathable hiker build.
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4x4 TigerTip® Toe & Leather Mudguard — Abrasion-resisting protection up front.
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Removable Double Tuff Polyurethane Footbed — Cushioned support over an EVA midsole.
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Non-Metallic Shank & External Heel Counter — Composite support with no steel in it, and added heel stability.
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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 & Heavy-Duty Slip-Resisting Rubber Outsole — Lightweight, all-terrain grip.
Lightweight, Waterproof Protection
The low 5" profile and carbon composite toe keep the shoe light and agile, while the sealed SCUBALINER™ membrane keeps feet dry. An abrasion-resisting mudguard and 4x4 TigerTip® toe extend its life.
All-Terrain Grip
A heavy-duty slip-resisting rubber outsole delivers rugged all-terrain traction, and an external heel counter adds stability.
Why Choose the CA4551?
A lightweight, low-profile, waterproof carbon composite-toe hiker for workers who want an athletic feel with jobsite protection.
Similar Styles to Consider
Prefer a taller 6" hiker? See the Flagstone CA5525. 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 hikers rather than heavy loggers.
What is the TigerTip®?
A high-abrasion rubber bumper wrapped over the toe. It protects the leather from scuffing rather than your foot from impact — the carbon composite cap underneath does that — and it meaningfully extends the shoe's service life.
Is it waterproof?
Yes. Carolina's SCUBALINER™ is a sealed membrane behind the entire upper, mesh panels included, rather than a surface coating that wears off.
Can I put my own orthotics in it?
Yes. The Double Tuff footbed lifts out. The CA4551 is EH rated rather than static-dissipative, so swapping the footbed doesn't put an SD rating at risk.
