A keyfob should do one thing exceptionally well: Secure what matters, without compromise.
The Mainka Keyform 01 Explorer is built around that principle.
Solid stainless steel hardware meets full grain leather in a form that is stripped down, deliberate, and built to endure daily use without degradation.
The oversized shackle is not decorative it’s mechanically reliable, easy to operate, and impossible to fail under load.
The leather body is cut from premium bull hides (the same we use for our Kaliber 45 leather belts), chosen for structure and longterm patina, not surface perfection.
Every detail serves function:
- A secure closure for fast access without friction
- A strong and resilient leather loop that won’t stretch out over time
- A weight-balanced design that sits clean in hand or pocket
No excess. No gimmicks. No shortcuts.
Over time, the leather will darken, soften, and develop character - while the steel remains unchanged.
Exactly as it should.
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Features
• Measures 15cm
• 13oz US full grain bull leather
• Stainless steel shackle
• Hand-stamped Mainka logo mark
• Handmade in Germany -
Materials
Leather: Vegetable tanned full grain bull hides, Tannery Wickett & Craig, USA
Shackle: Stainless Steel (Made in Germany)
Thread: Super heavy waxed saddle yarn -
Measures
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Shipping
Orders are shipped on business days only. Business days are Monday-Friday, excluding public holidays within Germany. We usually ship on the same day. Furthemore, we keep you up to date on the status of your order via email. Orders paid via credit card will be charged at the time the order is placed.
SHIPPING WITHIN GERMANY AND TO AUSTRIA
Free shipping within Germany and to Austria. Delivery time 1-2 days.
SHIPPING WITHIN THE EUROPEAN UNION INCLUDING THE UNITED KINGDOM
We ship to France (€7,00), Belgium (€7,00), Denmark (€10,00), Italy (€10,00), Netherlands (€10,00), Portugal (€10,00), Spain (€10,00) and to the United Kingdom (GPB10,00). Delivery time 4-7 days.
SHIPPING TO THE USA AND CANADA
We ship to the USA (15€) and Canada (15€) via UPS Express. Delivery time 5-7 days. Free shipping on all orders above USD200.
SHIPPING TO SINGAPORE
We ship to Singapore (30SGD). Delivery time 5-7 days.