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100% smooth vegetable-tanned
Unlined, resin coated
Approx. H13 x W6 cm
Single gunmetal snap closure
Pull strap with key ring
Gun metal tone hardware
De-bossed gun foil logo at front
De-bossed gun foil PI symbols
Tonal stitching
Comes with a dust Bag


Free shipping worldwide. This offer doesn't apply during sales. We ship worldwide.


We want you to be completely happy with every purchase. If you are not satisfied you have 30 days to return most Burgundy Assemblage purchases. Special orders, made to order goods, personalized/monogrammed items, and items identified as "final sale" cannot be returned. Shipping charges when returning the goods are on your responsibility.

If you have any enquiries, please feel free to contact us. We will answer questions regarding orders, products as soon as possible. You are also more than welcome to drop us a line if you have comments or to say hello.



Iota makes carrying keys look like a fashion statement. Our slim leather key case can hold up to 8 keys at a time without appearing bulky. Keys attach to a burgundy leather strap and are secured inside the case by a subtle snap. Flip the snap to remove the keys; a quick tug of the strap pulls them back into the case. Sleek and minimal, Iota is made of vegetable-tanned leather with a resin-coated back for a comfortable feel.


Inspired by the mathematical constant and irrational number, π. This collection highlighting the unique concept and stories behind each one. The goal is to help people visualize the integral role pi plays the product line and to celebrate the often-unrecognized friendship between science and design.


You are in possession of an article meticulously conceived, designed and crafted to last for decades.

The leather used for this and every Burgundy
Assemblage product is entirely natural and of excellent quality, as evidenced by the subtle variations in the tone, grain pattern, creases and markings in each piece. These distinctions are not defects or imperfections but celebrate the leather’s authenticity: no two pieces of natural leather are ever exactly alike.

Each swatch of leather we use is carefully selected for a specific design, function and lifestyle. To this end, we have a diverse selection of leathers serving as the foundation for our product line, including vegetable tanned, distress-aged, oil-pull, supple and pebbled grain. The product you are about to enjoy is therefore crafted with the leather intended to best complement your way of living.

To care for your Burgundy Assemblage goods, we suggest keeping it away from heat and water sources and storing in its own protective bag when not in use. In the event of light soiling, dab the leather with a dry soft cloth. Note that use of polish or beeswax, climatic conditions or extreme handling of the product may cause color alteration. We decline all responsibility for damages caused by unsuitable uses of our products.

The vegetable tanned leather is specifically developed for Burgundy Assemblage's Pi Collection using only the finest quality natural hides. Full-grain leather has a character all its own, often displaying natural markings that lend beauty and refinement to the patina of this top quality material. Possible marks and scratches are to be seen as a natural part of the leather/product and cannot be regarded as a fault.