Gen Z Can Have Our 90s Style TikTok Gen Z You Can Have Our 90s Fashion TikTok What Makes the 90s Grunge Aesthetic So Popular with Gen Z? Gen Z has brought back many of the defining looks from the late 1990s and early 2000s, from oversized low rise denim to Ugg slippers and sweatpants stamped with lettering across the back. Gen Z is bringing a 'cringe' '90s fashion trend back from the dead even Taylor Swift is on board 90s 2000s fashion was chaotic and now Gen Z is bringing it back like it's brand new.