adidas via eBay offers its adidas Men's Essentials 3-Stripes Pants in Black/Scarlet for $17.99. In-cart, the price falls to $13.49. With free shipping, that's a buck under last month's mention and the best price we've seen. (It's the lowest price we could find now by $12.) They're available in sizes S to XXL.
The dollar store is the most amazing place to find bargains for certain purchases. Yes, even pregnancy tests.