The amount of contents isn't the only reason a wallet becomes bulky. The "layering" of the materials themselves is also a major factor. Tenuis and Tynd not only design their wallets to be thin, but they also use thin, supple goatskin for the interior.
Goat leather has a fine grain (wrinkles) on its surface and is resistant to friction, so it has the advantage of not easily becoming rough even after repeatedly inserting and removing cards.
Those who have had the experience of buying something only to find it difficult to use or regretting it because it quickly became bulky will surely appreciate the rationality of this material. Rather than simply using a thin material in pursuit of thinness, the use of this goatskin leather is the result of reducing the thickness to the absolute minimum while maintaining the texture of leather.
Tynd Small Slim Wallet
https://solahanpu.com/products/tynd-cv
Tenuis 3rd Generation:
https://solahanpu.com/products/tenuis-third
Tenuis 4th Generation:
https://solahanpu.com/products/tenuis-fourth
