If you are on a tight budget, these Topman Track Pants will fit the bill. It's a fail-safe choice, while not very expensive. Another strong contender for your wardrobe is these Boss Green Jogging Pants. While the price of this piece is competitive, it will surely attract a lot of attention. You might also want to consider these DL1961 Sweatpants. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.