Reebok offers its Reebok Men's Spartan Race Long Sleeve Tri Blend T-Shirt in Medium Grey Heather, Royal Slate, or Black for $29.99. Coupon code "CHILLY30" cuts that to $20.99. With free shipping, that's $19 off and the lowest total price we could find. It's available in sizes S to XXL, although not in all color/size combinations. Deal ends October 16.