Onitsuka, a popular fashion brand in Japan, has seen a significant surge in sales, largely due to an influx of foreign tourists. Tourism in Japan has been on an upward trend, and visitors are evidently enamored with Onitsuka's unique and in-demand offerings. The financial boost has had a positive impact on Japan's economy.

Products that are unique to Japan or bear the "Made in Japan" label hold great appeal for tourists and are considered symbols of quality and craftsmanship. This phenomenon is common for many Japanese brands, generating domestic support for local businesses.

This is akin to how major US and European brands often become more popular and see a rise in sales when tourism is booming. For examples, international tourists flock to New York's Fifth Avenue to shop renowned brands, and crowd luxurious boutiques along Paris's Champs-Élysées.