Behind the Thin Wallet Boom: What That 44 Million Yen Project Changed in 2019

Thin wallets have now become a major category. But do you know how rapidly they've grown over the past few years?

According to research, approximately 100 "thin wallet" projects appeared on domestic crowdfunding platforms between 2013 and 2019. That number jumped to over 600 in just the four years from 2020 to 2024.

Part of the catalyst for this surge was our "Tenuis3" project launched in 2019.

  • The significance of the "¥44 million" figure : At the time, receiving such substantial backing for a wallet project was highly unusual. I believe it reflected just how many people were craving a wallet that was "truly thin and truly easy to use."

  • Our role as the spark : When a boom occurs, it's only natural for similar products to proliferate within the industry. However, we didn't just create a trend; we consistently looked ahead and continued to refine our product.

  • "History" as a Mark of Trust : While new brands emerge and fade away, we've evolved through third and fourth generations, remaining a chosen brand. This very fact speaks to our product's refinement and appeal.

When you're unsure which "thin wallet" among the many is the real deal, take a look at the history of the brand.

Thickness: 6mm! The innovative "Tenuis3" wallet stays slim even with cards and coins. https://camp-fire.jp/projects/185652/view


Back to blog