Redefining the mini wallet.

An Unsettling Feeling in Your Pocket

Even after switching to a mini-wallet, your pocket still feels off.

Every time you reach into your pocket, you feel the presence of your wallet. It's in the way when you sit down. It snags when you try to take it out. "It's supposed to be compact," you think – and you're probably not alone in dismissing that unsettling feeling.

The term "mini-wallet" only refers to its surface area. But a wallet is something you fold and put in your pocket.

Even if the surface area is small, if it's thick, its presence won't disappear.

The Reason for the Popularity of the Tri-Fold, and its Blind Spot

To minimize surface area, a tri-fold was a logical solution.

To make the folded area close to card size, folding it into three equal parts is the most efficient. That's why the tri-fold became synonymous with mini-wallets. The logic is sound.

However, this structure has a blind spot that has been overlooked.

When tri-folded, all contents overlap. Cards, coins, and bills are folded in a three-layer stack. The more the area is compressed, the more the thickness builds up. This is a structural inevitability and cannot be avoided by clever design.

Another side effect is the curling of bills. After repeated tri-folding, they develop a permanent curl. They get rejected by self-checkout machines and ticket vending machines. If you give them as change, the recipient will also be inconvenienced. The cost of compactness isn't something only you pay.

This is what happens when you define a "small wallet" based on only one axis: surface area.

Redefining "Small"

So, what exactly is a small wallet?

It's not about surface area. It's not about volume either. It's about being able to forget it's in your pocket. It's about not having your actions interrupted when you take it out. It's about not being in the way whether you're sitting or walking.

Small means a small burden on your actions.

Starting from this definition, the question changes. Instead of "How can we reduce the surface area?", it becomes "How can we make the wallet's presence disappear?"

A truly compact wallet is one where you can forget it's in your pocket.

Conditions Determine Form

When you seriously try to meet the condition of "a wallet with a small burden on your actions," the structure naturally converges.

Minimize surface area. Minimize thickness. Be easy to use. These three must be achieved simultaneously.

To minimize thickness, cards and coins must be separated. To separate them, a bi-fold structure is advantageous. While the surface area is slightly larger than a tri-fold, the difference is small enough to fit into most pockets without issue. And the thickness is incomparably reduced compared to a tri-fold.

The Hitoe® structure was born from this necessity.

However, thickness isn't the only cause of its presence.
Typical wallets use metal hardware for their clasps. These hard protrusions create an uncomfortable feeling in your pocket.
That, too, is a factor that makes you aware of the wallet's presence.

The question of "making the wallet's presence disappear" also leads to the elimination of metal hardware.
Achieving opening and closing without using metal fittings – the inner hook is an approach that answers the same question, but from a different angle than the Hitoe® structure.

Form is Born from Questions

You wouldn't arrive at this point with the question "Let's make a small wallet."

Chasing only surface area sacrifices thickness.
If you minimize one, the other becomes distorted.

Only when you pose the question, "How can we make the wallet's presence disappear?" can you simultaneously address both surface area and thinness. And that question determines the form.

The term "mini-wallet" remains unchanged. But its definition can be re-examined.

(Text by Hirotaka Sato | SYRINX Representative and Designer)