For a limited time, get 15% Off Sitewide at Sports Authority. Plus, get free shipping on most shoes and clothing, as well as on most other orders over $49. This deal also pairs with sale items which are already reduced. Choose from running shoes, baseball gear, workout clothes, team apparel, and more. The pictured Nike Men's Flex Experience Run 2 Running Shoes, for example, drop from $65 to $54.99, and then to $46.74, the best we could find by $12. Sales tax is charged in most states.