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Key Cache - Brass

ⓘ Custom orders ship in 5-10 days

  • Minimal, machined, brass cache
  • Fits on your keyring while hiding a secure compartment
  • Fits at least one banknote of any currency
  • Additional room for a message with your vital details
  • Hermetically sealed to keep its contents dry
  • Add personalisation of up to 25 characters, laser engraved on the base
  • Manufactured in the UK from aerospace-grade brass
  • Available in our other metals
  • Backed by our guarantee - Try for 30 days. Keep for 30 years.
  • A machined stash for your emergency cash.

    Cache (kash) [noun]

    1. a hidden place for provisions, valuables, treasure – as used by explorers or adventurers

    2. a secure place of storage

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

It neatly clips onto your keyring and contains a secure compartment to store banknotes and an “if found” note in case your keys go missing. Having emergency cash tucked away will spare your blushes if you forget your wallet. It could even save your bacon on your travels – a backup $100 note can get you out of a lot of tricky situations. Machined from a solid bar of aerospace-grade brass, the Key Cache has been designed to last for decades, not months. For video instructions on how to fold the notes to fit inside, click here.

  • Metal: Aerospace grade brass from Europe, CNC machined in Birmingham, UK.

    Keyring: As above, (included with your Key Cache).

    Sleeve: Oeko-Tex double thickness cotton sleeve from Poland, Europe.

    Finish: Laser engraved, assembled by hand and packaged in London, UK.

  • Dimensions: 40.50mm x 13.6mm diameter (outer), 31mm x 10mm diameter (inner)

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

    Engraving: All inscriptions are in capital letters and run around the base of the Key Cache

    Considerations: The brass Key Cache will develop a unique patina as its surface oxidises and interacts with the natural oils in your skin. It will quickly look like a timeless tool, but can easily be polished up to its original lustre

  • It takes a few days to make each product to order but this ensures every item is one of a kind and nothing goes to waste. We aim to dispatch all orders within seven working days and often a lot sooner. You'll receive an estimated dispatch day in your order confirmation email. Click here for the most up to date shipping information.


Customer Reviews

Based on 72 reviews
Jack Whyte (London, GB)
Fun, beautiful but fiddly

As with all Wingback stuff, build quality is top notch and it's fun to re-imagine how I carry keys around. However, actually fitting a British bank note, which is plastic, inside one of these is an exercise in frustration. I note the promo video stops short of showing this fully and the pics show a dollar bill which is much easier to roll up. I'd also add that it's a shame this is a dead end rather than being able to attach the key Loop product to it, after the cache. As it is, attaching Key Loops to the brass ring is only possible by sacrificing half of the Cache. Otherwise, this is a lovely and fun solution.

Rob (Gloucester, GB)
Key cache-steel

Well designed and manufactured. I am happy with the purchase.

Anonymous (Birmingham, GB)
Excellent product

Perfect low profile key carry, amazing packaging and amazing quality. Items took a little longer than initially estimated, but customer service representative was friendly, courteous and informed me as to why the delay occurred. Would recommend.

Edith (Singapore, SG)
Amazing Tool

Look great on my keychain. It's definitely build to last. Cash is tightly snuggled in the gap. This provide me immerse joy every time I see my keychain now. Will keep it for as long I can. Thank you!

Stephen Groves (Hexham, GB)
Unique and great value

I bought another key cache from Wingback these products are of the best quality so much so I have bought a number of them as presents. Discrete they can be used to keep currency safe as an emergency stash. This unique company is first class and provides first class products