Yallstore via eBay offers the Free Knight Trekking 60-Liter Outdoor Travel Backpack in several colors (Navy Blue pictured) for $24.49 with free shipping. That's tied with last month's mention and at least $10 under the lowest price we could find for a similar Free Knight Backpack of this size. It features a rain cover, elastic straps and belts, and a water-resistant nylon terylene construction.