Beyond "thinness," there's also "tap-free." The shortest possible movement of your wallet to shave off a second from your checkout time.

The term "time performance" (TAIPA) is something we hear a lot these days. This isn't just about saving time; it's directly related to the idea of how to eliminate unnecessary stress.

When pursuing the ultimate in wallet design, one theory suggests that the key is not just "thinness" itself, but also "minimal movement."

We unconsciously take many steps when we're standing in front of the checkout counter.

1. Take your wallet out of your pocket
2. Unbutton or unzip
3. Find the card or banknote you're looking for.
4. After payment, realign the button and close it.

Even just the simple action of "buttoning up" involves more than 1,000 "aiming actions" per year, assuming three transactions per day.

SOLAHANPU's design aims to minimize this step as much as possible. A structure that holds its contents securely with just a simple fold. An open design that allows you to see at a glance where everything is the moment you open it. These are the results of removing small burdens on the user's brain, one by one. Even if some operation is required to close the wallet, it is developed with the perspective of how to incorporate that operation into a natural human hand movement.

The ability to complete the transaction as quickly as possible and move on to the next task—a design that avoids such "mental congestion" is what we believe is the true performance required of a modern wallet.

Tenuis 3rd Generation
https://solahanpu.com/products/tenuis-third

Tenuis 4th Generation
https://solahanpu.com/products/tenuis-fourth