Built for warmth and protection, this men's 10" puncture-resisting waterproof insulated internal metguard boot is union-made in Matterhorn's Pennsylvania factory.
The Klondike pairs a steel safety toe, a D3O™ non-metallic internal metatarsal guard, and a non-metallic puncture-resisting insole with a GORE-TEX® waterproof membrane and 200 grams of Thinsulate™ — on a Goodyear welt and a Vibram® 1275 Olympia outsole. High-visibility reflective strips and an abrasion-resisting TigerTip® toe finish a boot built for mining, oil and gas, and underground work. This style is proudly Made in the USA with global parts.
Key Features of the Matterhorn CV12000
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Steel Safety Toe Cap — Meets ASTM F2413-18 for impact and compression.
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D3O™ Non-Metallic Internal Metguard — A flexible impact-absorbing polymer over the instep that stiffens on impact; meets ASTM and EN metatarsal protection standards without an external plate.
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Non-Metallic Puncture-Resisting Insole — Underfoot protection from nails, rebar, and rock without a steel plate.
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GORE-TEX® Waterproof Membrane — Breathable, guaranteed-waterproof lining.
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200 Grams of Thinsulate™ Insulation — Cold-weather warmth without bulk.
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Matterhorn TigerTip® — Abrasion-resisting toe guard over the leather where a mining boot scuffs first.
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Black Full-Grain Leather Upper, 10" Lace-to-Toe — Fit adjustable the full length of the instep.
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External Ankle Support — Structured support against roll on broken ground.
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High-Visibility Reflective Strips — Added visibility underground and in low light.
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Electrical Hazard Rated — Secondary protection against live circuits.
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Cambrelle® Lining and Removable Polyurethane Insert — Moisture-wicking interior; lift the insert for your own orthotic.
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Steel Shank and Goodyear Welt Construction — Stiff underfoot support on a stitched, resoleable sole.
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Vibram® 1275 Olympia Rubber Outsole — Oil- and slip-resisting lug traction.
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Union-Made in the USA with Global Parts — Built in Martinsburg, Pennsylvania.
Three Layers of Protection, Two of Them Non-Metallic
The steel toe handles impact and compression at the front. Behind it, the D3O™ metguard covers the metatarsal bones on top of the foot — the injury a toe cap does not prevent — and because D3O™ is a soft polymer that hardens only on impact, the guard flexes when you squat and kneel. Underfoot, a non-metallic puncture-resisting insole stops nails and rock without the weight or cold transfer of a steel plate.
Warm, Dry, Seen
A GORE-TEX® membrane keeps water out while letting the foot breathe, and 200 grams of Thinsulate™ takes the edge off cold shifts without overheating on the move. Reflective strips on the shaft are a mining-boot detail Matterhorn carries over: in a dim heading or a night yard, they are the difference between being seen and not.
Built to Be Rebuilt
Goodyear welt construction stitches the Vibram® outsole to the upper rather than bonding it, so a cobbler can replace the sole when the lugs wear down and you keep the leather you have already broken in.
Why Choose the CV12000?
A USA-made, GORE-TEX® waterproof, 200g-insulated steel-toe boot with an internal D3O™ met guard, puncture-resisting insole, EH rating, and a resoleable Vibram® sole — the Klondike is the full mining-spec package for cold, wet, underground work.
Similar Styles to Consider
Working in milder weather? The Banksman 12255 is Matterhorn's uninsulated 10" USA-made steel-toe met-guard boot with a puncture-resisting insole. Prefer a composite toe in an 8" logger? The MTC300 Maximus 2.0 carries a D3O™ met guard and a fully non-metallic build. Browse the full Matterhorn collection, or see every met guard boot and puncture-resistant boot at Overlook Boots.
Frequently Asked Questions
What is a D3O™ internal metguard, and how does it compare to an external guard?
D3O™ is an impact-absorbing polymer that stays soft and flexible in normal wear and stiffens instantly under impact. Built inside the boot over the instep, it meets ASTM and EN metatarsal protection standards without the bulk or the squat-and-kneel discomfort of a hinged external plate.
What safety standards does the Klondike CV12000 meet?
A steel safety toe rated to ASTM F2413-18 for impact and compression, metatarsal protection to ASTM and EN standards, a puncture-resisting insole, and an electrical hazard rating for secondary protection against live circuits.
How warm is 200 grams of Thinsulate™?
200 grams is the lightest insulation weight and the most versatile — enough to take the chill out of a cold, wet mine or a winter yard while you are moving, without the overheating a 400g or 600g boot brings to an active shift. For long stationary work in freezing temperatures, Matterhorn builds heavier insulated met-guard styles.
Why lace-to-toe on a mining boot?
The eyelets run all the way to the toe, so you can tighten or relieve pressure across the entire top of the foot and lock the heel back. With an internal met guard over the instep, that adjustability is what keeps the guard sitting flat and comfortable through a long shift.
Can the CV12000 be resoled?
Yes. Goodyear welt construction stitches the Vibram® 1275 Olympia outsole to the upper rather than gluing it, so a cobbler can replace the sole when the lugs wear flat.
What is the difference between the Klondike CV12000 and the Banksman 12255?
Both are USA-made 10" steel-toe met-guard boots with puncture-resisting insoles. The Klondike adds a GORE-TEX® membrane, 200 grams of Thinsulate™, and reflective strips for cold, wet, low-light work; the Banksman is the three-season version.
