Thin material does not equal "weak strength." Calculations for the structure of a thin wallet.

Some people say that "thin wallets are easily broken" or "they're not strong enough because the material is thin," but is that really true? There are wallets that are made from thick materials but designed to be thin, but the knowledge and technology to make durable wallets even with thin materials certainly exist.

What's important isn't the thickness of the material itself, but how the shapes are combined, the structure, how the load is applied, how it's calculated, and how it's sewn .


A structure that releases force not at a single point, but as a whole.

Even with thin materials, damage can be prevented by identifying where tensile forces are concentrated and distributing those forces during the design phase. For example, thinness and strength can be achieved simultaneously by meticulously calculating the connections between parts to prevent stress from concentrating on specific corners or seams, or by adopting a structural shape that allows forces to escape.

A "calculated design" that doesn't rely on the thickness of the material.

Simply using thick leather will provide strength to the material itself, and I don't deny that. However, if the same structure could be reproduced with a thinner material, such as goatskin, it should be possible to make it even thinner.

Instead of relying on thickness, the key is to take an engineering-like approach and thoroughly investigate "how can it withstand this thinness?" This, along with design, is crucial for creating a truly user-friendly wallet.

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

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