OLD NAVY 50% OFF Sale – $15 Sweaters, $4 Tanks, and MORE This post may contain affiliate links. Please see the full disclosure policy here. Posted on October 13, 2014 Written by Mary Leave a Comment HOT! Check out Old Navy’s HUGE 50% off sale. I found tanks, sweaters, and SO MUCH MORE for 1/2 off! Gotta love that. Valid today only. Be sure to check out the Women’s Sweaters for only $15 (regularly $29.94!). There is a limit of 5 sweaters per customer, while supplies last.