In the Sept. issue of Seventeen mag, they have a small ad on pg28 'Get a Free Tank Top From Wet Seal' - see pg 192 for more details.
Page 192, Giveaway rules:
Starting Aug 1st bring this page or a printout of the seventeen.com homepage, or Sept. issue of Seventeen on an e-reader into any Wet Seal and receive one Kaylee Cami (approx. retail $6.50). Your choice of black or white. 30,000 given away. One per person until Sept 10th, while supplies lasts.
Wet Seal locations:
Pics of cami: