Mary-Kate Ashley Olsen
Terry Richardson; Courtesy of Stylemint

The Row designers Ashley and Mary-Kate Olsen will launch yet another fashion line tomorrow—Stylemint.com—and InStyle.com got an exclusive sneak peek of the new collection to share with you! Here’s what you can expect: The new line features only soft, stylish cotton Ts designed by the twins, each for $30, and it will live entirely online at the members-only shopping site Stylemint.com. To join, users answer a series of fun personality and style questions, and based off the data, the Olsens offer four T-shirt designs and styling suggestions to go with them. A new month means four new designs, personalized just for your style. Can’t wait until tomorrow to browse Stylemint? Click “See the Photos” for a sneak peek at the July collection now!

BONUS! Win a full free year of Stylemint Ts! Head over to StyleMint for your chance to win!