FREE Pack of Tees, Briefs, or Boxers at Adidas Outlet This post may contain affiliate links. Please see the full disclosure policy here. Posted on June 7, 2011 Written by Mary Leave a Comment WOW! Adidas is offering a coupon for one Free Pack of Tees, Low Rise Briefs, or Boxer Briefs. Just head over and print it out and take it with you to your local Adidas Outlet Store. Coupon is valid from 6/7/11 – 6/14/11. GREAT Father’s Day Gift!