Reebok via eBay offers its Reebok Men's Training Essentials Woven Pants in Collegiate Navy or Black for $14.99. In cart, that drops to $11.99. With free shipping, that's $23 off and the lowest per-pair price we've seen. They come in select sizes from S to XXL.
With these companies, it might be easier than you think to negotiate your monthly bill down.