Tracked by Evreward since 2016, Callaway Apparel offers coupons, cash back rebates and rewards, with savings as high as 10% off. Callaway Apparel discount coupons are infrequent, only available a couple times per year. Even when Callaway Apparel doesn't have a coupon, you can always get up to 15% cash back, and other great rewards, with every purchase.