H1-KEY Group name: H1-KEY (하이키)Instagram: @h1key_officialTwitter: @H1KEY_official Members Seoi (서이)Sitala (시탈라)Riina (리이나)Yel (옐) Fashion H1-KEY Sitala | ATHLETIC GIRL Mnet M Countdown | MISBHV logo halterneck sports braH1-KEY Sitala | ATHLETIC GIRL Mnet M Countdown | MISBHV logo halterneck sports bra H1-KEY Yel | ATHLETIC GIRL SBS Inkigayo | MSGM logo tank topH1-KEY Yel | ATHLETIC GIRL SBS Inkigayo | MSGM logo tank top