"The new Tenuis 4th generation model has been released, but I still want to use the 3rd generation."
The third generation Tenuis is the model we've been hearing such things about. The reason this model continues to be chosen, even after its successor has been released, is because it goes beyond mere "thinness" to have "perfect balance as a tool."
The sense of security that comes from familiarity with zippers
The biggest difference between the third generation and the fourth generation is the zipper used in the coin pocket. Even though cashless transactions have progressed, there are still situations where you need coins. Zipper coin pockets are a part that has been used in many wallets, and I think many people have become accustomed to them and will grow to love them. However, some people have complained that even the thin zipper sliders for wallets don't feel right when they hit the card side when folded in half, so this is a two-way street.
3rd generation: The zipper is convenient, but the slider hits the card section and coins do not completely stop moving up and down.
4th generation: The zipper has been removed and the coin pockets are completely separate from each other, but I miss the ease of use of a zipper.
To sum it up, I think it's something like this. 
A turning point that brings the soul of canvas to leather
SOLAHANPU has long pursued the possibilities of high-density canvas. This third generation is the first time that the "technology to push the limits of thinness and strength" cultivated in the process has been fully sublimated into leather. The early third generation used waxed canvas on the outside and goatskin on the inside, while the later third generation used cowhide on the outside and goatskin on the inside . This masterpiece, born from the encounter of the finest leather in the history of Tenuis, which began with canvas, is truly a product that can be said to be a turning point for the brand.
The choice to choose the "third generation" now
The fourth generation now comes in fuzzy, sparsely textured Margaux leather, while the third generation leathers (Toscano, Bulgaro, Erbamat) offer a wider range of options.
*Regarding this, we do plan to gradually increase the material options available for both generations.
- Those who want a zipper opening and closing method
- The new version looks good, but I want to start with a proven introductory version.
If you fit the above criteria, you might want to consider the 3rd generation. A few years have passed since its release, and many "thin wallets" have appeared, but the Tenuis 3rd generation continues to shine as one of the best.
Tenuis 3rd Generation
https://solahanpu.com/products/tenuis-third
Tenuis 4th generation
https://solahanpu.com/products/tenuis-fourth 
