Old Navy: 75% off Adult Sweaters This post may contain affiliate links. Please see the full disclosure policy here. Posted on November 20, 2011 Written by Mary Leave a Comment WOW!! If you’re in need of sweaters-head to Old Navy today for a great deal! Grab 75% off adult sweaters- IN STORE ONLY! TODAY 11/20 ONLY! Will you be heading to Old Navy today?