Your Cart is Empty

Limited Edition - Key Cache X Lei Melendres

This collaboration has now closed. Sign up to our newsletter using the form at the foot of this page to be the first to know about our next limited run.

The Key Cache is designed to enhance and complement your everyday carry, while discreetly adding functionality. 

It neatly fits onto your keyring while containing a secure compartment to store banknotes and contact details in case your keys go missing. 

For this limited edition collaboration, we teamed up with Manila-based illustrator Lei Melendres, bringing one of his “We Are Infinite” doodle characters to life on the base of the Key Cache.

Laser engraved in brass or stainless steel, this collaboration is a celebration of Lei’s sprawling creations, defined by repetition, pattern, monsters, animals, unimaginable creatures and the unknown.

Lei Melendres is a freelance illustrator and the head of Doodle Art Enthusiasts, the Philippines’ largest doodling community. His inimitable artwork has graced books, magazines, murals and galleries around the world. Lei describes his infinite doodle style as conveying the intensity of endless details and elements interacting together to form a scene of art.

Commenting on the design, Lei says, “I think of the different characters I draw in my artwork as the people we have met throughout our lives, who have influenced us physically, mentally, emotionally and spiritually."

Please note: This limited edition collaboration Key Cache is not available with a personalised inscription.


  • Dimensions: Outer: 40.50mm x 13.6mm diameter, Inner: 31mm x 10mm diameter


    Capacity: Fits GBP, EURO, USD and every other note we have tried (the maximum size we have tried is 160mm x 82mm). 


    Manufacture: CNC machined from a solid block of stainless steel and treated with a black steel oxide coating. The body features custom knurling to provide the ideal ergonomic and aesthetic finish. Hermetically sealed with a silicone washer to keep its contents dry. Designed and manufactured to aerospace standards in the UK, with all material sourced from Europe.


  • Delivery: It takes time to hand make each product to order and during busy periods we can build up a bit of a waiting list, please click here for the latest information.




Customer Reviews

Based on 1 review Write a review

Customer Reviews

Based on 58 reviews
william Langdon-Banks (Monaco, MC)
Nicely crafted

Lovely products. Special.

Rob Boyer (Solihull, GB)
Style and substance

There are many ways to carry a little bit of emergency cash in an increasingly cashless society. The Wingback key cache is just a little bit stylish than most. Laser engraved with a return phone number (just in case as it is on my minimal carry carry).

Sanjeev Kamboj (Egham, GB)
Beautifully Made.

I have just received the key cache in brass and a custom moleskin note book cover. Both are exceptionally well made and personalised to me so feel very special. Keep up the great work Wingback team.

Pablo A Cuesta (Fort Lauderdale, US)
Hated it, made my front pocket chunkier if anything.

Way too expensive, you have to make it yourself, makes your front pocket carry another thing, I much prefer a carabiner which doesn’t work well with this either when you carry house keys and a car key fob, when I asked if they could help me they chose not to and rather me return the item and get a refund instead which took money out of my pocket, extremely unhappy.

Hi Pablo,

It's a shame the key cache wasn't to your taste - you asked for help with an international return which I talked you through and then refunded your order once it had arrived back at the workshop. We don't offer free returns, either internationally or domestically in the case that someone changes their mind.

Best of luck finding a more suitable addition to your keys.



C.S. (Zurich, CH)
A piece of history

Some things in life are essential, some things in life are important, some things in life are a luxury and some things in life are obsolete.

Putting this product in one of those categories is more subjective than objective.

To own an item of this level of quality that follows one around every step of the way through the daily journey of life makes one feel... no... makes one KNOW that one has a piece of history in their pocket.
An item that will undoubtedly become a piece of history once a kin way down the line will proudly explain to some observant fellow human how this masterfully designed and machined chunk of grade-A quality metal went through the hands of many ancestors...

It is then when the line between essential, important, luxury and obsolete fade and there is something deeper taking their place: Emotion.