
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 Carbon Composite Safety Toe — Lightweight carbon-fiber toe meeting ASTM F2413 I/C, with reduced cold transfer. Waterproof SCUBALINER™ — Carolina's sealed waterproof membrane keeps feet dry. Buff Crazy Horse Olive Leather & Mesh Upper — Rugged, breathable hiker build. 4x4 TigerTip® Toe & Leather Mudguard — Abrasion-resisting protection up front. Removable Double Tuff Polyurethane Footbed — Cushioned support over an EVA midsole. Non-Metallic Shank & External Heel Counter — Composite support with no steel in it, and added heel stability. Electrical Hazard Rated — Up to 18,000 volts at 60Hz for one minute without leakage. 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 bump
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