In 1993, he launched Undercover, a high-end streetwear label for men, women and children.[3] Also in 1993, he launched Nowhere, a retail venture in Ura-Harajuku with his friend Nigo, the founder of BAPE. In 1994–1995 he participated in Tokyo Fashion Week. In 1995 the Nowhere Ltd. company store opened in Harajuku.[4]
Japanese designer Rei Kawakubo who created the brand Comme des Garçons, became Jun's mentor and persuaded him to come to Paris. The Paris store Colette liked his clothes so much that they asked Takahashi to present his 1998 collection "Exchange" in their store.
Undercover made its debut at Paris Fashion Week in October 2002, for Spring/Summer 2003.
Takahashi also creates activewear lines for men and women under the label Nike x Undercover Gyakusou, with the sportswear giant. Additionally, Takahashi has collaborated with Uniqlo to create Uniqlo Undercover, since 2011.[5]
In 2021, Takahashi created artwork and an animated music video for "Creep (Very 2021 Rmx)", a remixed version of the 1992 Radiohead song "Creep". Radiohead singer Thom Yorke contributed the remix to one of Takashi's fashion shows.[6]
In 1997, he received the New Face Prize in Mainichi fashion grand prize sponsored by the Mainichi national daily newspaper. In 2001, he received the Grand Prize in Mainichi fashion grand prize sponsored by the Mainichi national daily newspaper. In 2013, he received the Grand Prize in Mainichi fashion grand prize for the second time.[8]
