Reebok via eBay offers its Reebok Men's CrossFit 21-15-9 T-Shirt in Dark Grey or Skull Grey for $9.99 with free shipping. That's $15 off list and the lowest price we could find. It's available in sizes S to L.

Need more than one? Add two to your cart and the price for both falls to $16.98 with free shipping ($8.49 each).