Go Illini! Shop online with Gameday Spirit for all your officially licensed Fighting Illini gear. Gameday Spirit, home to the best selection of Illinois Chief gear, we have the latest Illinois t-shirts, sweatshirts, hats, and more from Nike, the official sideline partner of Illinois Athletics. Along with other top brands like Champion and Cutter & Buck! Including Men’s, Women’s and Youth apparel we have Fighting Illini gear for the entire family. Show your Illini Spirit at home, at the office, or on the go with our selection of University of Illinois novelties. Gameday Spirit is Illinois' BEST spirit store and has a great selection of Illini apparel and merchandise!