Nike periodically sends it customers signed up for email promotions a personal promo code and pin for $20 off a purchase of $100+. All you have to do is sign up for email offers and keep checking your email to receive your own $20 off Nike promo code. To sign up: follow this link to the sign-up page and you'll be started. Coupon is not guaranteed, but current users received them on 2/17/17.