Dick's Sporting Goods offers the adidas Men's Climalite Training Pants in Forest Green, Royal Blue, or Maroon for $37.93. Add them to your cart to drop the price to $28.45. With free shipping, that's $22 off list and the lowest total price we could find. They're available in sizes S and M, although not in all size/color combinations. Deal ends January 28.
There's a less expensive way, and then there's the way that works for you. The two may not be the same.