Back to School Styles for the Fam 60% off.. Starting 08/12: Today Only. Back to School Styles for the fam 60% Off. Online Only. Excludes Maternity. Restrictions apply. Ends 08/12.000060% Off Back to School Styles: Offer valid 8/12/19 at Old Navy online only. Offer not valid at Old Navy stores in the United States (including Puerto Rico). Excludes Maternity. Select styles only. While supplies last. No adjustments on previous purchases. Cannot be combined with other offers or discounts, including Gap Inc. employee discount.00.