Needles, the Japanese label founded by designer Keizo Shimizu, has been making their now famous track pants with the butterfly embroidery for a few seasons. But it wasn’t until a few months ago that stylish kids everywhere began catching on. With the sportswear trend and heavy co-signs from ASAP Rocky, ASAP Bari, Luka Sabbat, and the No Vacancy Inn guys, Needles hasn’t been able to keep the track pants in stock at Nepenthes, the store Shimizu opened, and other stores.