How teens and smartphones are killing teen-fashion retailers

Mipri Haye, 17, of Sewell, N.J., posts her latest outfits on Instagram and Snapshot. Her favorites are H&M, Forever 21 and Charlotte Russe. Many are not as popular. Several teen retailers - such as PacSun and Aeropostale - have filed for Chapter 11 bankruptcy in the last year and a half as the sector is struggling. Experts say teens like Haye make vast use of social media on what they like and don't like and can be very influential. (Suzette Parmley/Philadelphia Inquirer/TNS)

PHILADELPHIA: Mipri Haye, a high school junior, is on Instagram and Snapshot daily, showing off her latest outfits to her girlfriends. 

She also shares where she got those clothes: Forever 21, H&M, and Charlotte Russe often top her list.