Online shopping site, '11st', dropped two new CFs featuring the sexy and chic members of SISTAR!

In both, the girls pose in sophisticated black outfits that show off their body lines as they promote '11st's mobile service. �They also transform into sexy office workers with a tight pencil skirt and white blouse tucked in, all topped with glasses, as they show the efficiency of the mobile app.

SEE ALSO: Controversy surrounds Sakura's response to live performance criticism

There isn't too much of a distinction between both CFs, but check them out anyway!