Save on Old Navy Activewear! Save 50% Off The links in the post below may be affiliate links. Read the full disclosure Here. March 11, 2017 By: SMFMcomment Save on Old Navy Activewear! Through Sunday, 3/12 and in-stores only, hop over to your local Old Navy and score 50% Off Activewear for the Family! Prices are as marked on select styles. Supplies are limited, so hurry! You can also shopping online, they’ve got some great deals as well. For example, I spotted Semi-Fitted Go-Dry Cool Running Tees for only $7.45 (Reg $15). Plus, get FREE Shipping over $50!