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Minimalist Design Inspired by Natural Stone
Black Coal is a unique metal card holder designed with natural slate stone, combining durability with a distinctive natural appearance. Slate forms deep underground over millions of years from compressed clay and volcanic ash, giving each piece its own subtle texture and character.
The card holder reflects a minimalist design approach — compact, practical and built for everyday use. Its solid construction protects your cards while maintaining a slim profile suitable for carrying in a pocket.
Equipped with RFID blocking protection, the card holder helps shield contactless cards from unauthorized scanning, offering additional security for modern everyday carry.
Sustainable Craftsmanship
Black Coal is created by Seif Design, an Estonian brand known for its globally unique stone-designed card holders. The company focuses on sustainable production and environmentally responsible materials.
All Seif Design products are manufactured in Estonia, and the brand has transitioned its production processes to green energy generated by solar panels. Packaging materials are fully recyclable, supporting environmentally conscious production.
Former Estonian president Kersti Kaljulaid described the product:
“A wallet made from stone is as sustainable as it gets — a true counter to things with a short lifespan.”
Key Features
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Natural slate stone design
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Durable metal card holder construction
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RFID blocking protection against contactless theft
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Holds up to 12 cards
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Compact minimalist design
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Available with or without money clip
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Made in Estonia
Materials
The card holder combines natural slate stone with durable metal construction. Slate is a natural material formed through geological processes over millions of years, giving every piece a unique appearance.
Product Details
Material: Natural slate stone and metal
Capacity: Up to 12 cards
Security: RFID blocking protection
Optional: Version with or without money clip
Origin: Made in Estonia
Samelin
M77 aka Norwegian Combat Boots
€134,99 EUR
Unit price perChallenge the unknown with our legendary M77 aka Norwegian Combat Boots. Dominate any terrain with these durable boots that will keep you going on your adventures. Don't let anything hold you back; take the risk and conquer your goals in style with these legendary boots!
M77 aka Norwegian Combat Boots are one of the best-known military boots in the world and are also our top bestseller. They are so legendary that they are even mentioned on the Wiki page of combat boots. It's probably not a big surprise that the Norwegian media recently featured the story of a former soldier who tattooed the M77 boots on his hand. Additionally, tech speaker and creator Morten Rand-Hendriksen reviewed the M77 boots on TikTok, attracting more than 400k views. He even calls them "the best pair of boots you’ll ever buy."
The first version of the M77s was delivered more than 50 years ago to the Norwegian military, and several NATO armies also trust the M77 today, including the Norwegian forces. It took ten years to develop the M77 leather boots, as the Norwegian army had stringent requirements for boot resistance, comfort, gravity, and moisture resistance. Furthermore, it was essential that these boots were easy to maintain. The result is no-nonsense, comfortable, breathable, and water-repellent boots made only of thick 2.8-3 mm full-grain leather, steel, and polyurethane. The anatomical insole is shockproof, antibacterial, breathable, and washable.
Most importantly, they are durable. Just keep the boots well-greased. As with full leather boots, it may take some time to wear them in, but once they are broken in, they are as good as it gets. These leather boots are unisex and designed for both men and women. The sizes run large, intended to be worn with thermal or even double socks. If you plan to wear them in freezing winters, we recommend our inner socks that are made specifically for the M77. In conclusion, they are probably one of the best value-for-money boots in the world, but we understand they are not for everyone
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Upper: 2.8–3 mm full-grain water-repellent leather
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Outsole: Direct-injected PU
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Lining: Light Cambrelle textile lining under the tongue
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Insole: Anatomical, antibacterial, and washable
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Manufacturer Standards: NATO AQAP 2110, ISO 9001
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Where It’s Made: Estonia, Europe
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Shipping: 4–8 workdays