Celebrate the American worker with this collection of patriotic Clemson products this Labor Day. T-shirts, flags, koozies, and grilling sets. Everything you need to celebrate your freedom to be a Tiger Fan. Mr. Knickerbocker is the Clemson Sports Shop tradition since 1973. Our sports shop offers merchandise that is not sold anywhere else! Mr. Knickerbocker is the home for the Clemson Strong movement that helps fund youth programs for little Tigers to grow up to become big Tigers! When you shop Mr. Knickerbocker, you get unique Clemson apparel and we get to give back to our communities! Clemson Strong is USA Strong.