Inside the thong strap is the word “JAPAN.” Kujūku is Japan’s only brand that continuously manufactures beach sandals domestically. The brand name ‘TSUKUMO’ means “ninety-nine,” derived from subtracting one from one hundred. It embodies the brand’s commitment to never be satisfied with the status quo and to constantly strive for the ultimate sandal.

https://www.pen-online.jp/article/019552.html

Japan-inspired flip flops

flipflop was born in japan.tsukumo is the only factory in japan.