The chain now releases both calf- and ankle-length designs in seasonal colour palettes, plus one-off collaborations with major pop-culture franchises, including Stranger Things, The Simpsons and the Fuji Rock Festival. Nippon League baseball teams Hiroshima Carps, Yomiuri Giants and Fukuoka SoftBank Hawks have also received regionally available Line Sock editions, as did FamilyMart's signature fried chicken, Famichiki. [...] Among Japanese consumers, conbini socks remain a practical item: something you buy because you forgot a spare, or because a limited-edition collaboration catches your eye. Yet FamilyMart's sock sales have now exceeded 30 million pairs, finding fans worldwide. Yunna Takeuchi, co-founder of City Unscripted, grew up in the UK with a deep understanding of the Japanese language and culture. On her first visit to Japan, she noticed that the socks felt aligned with the culture she had experienced at home.