LightInTheBox offers the Oseagle 40-Liter Mountaineering Backpack in five three colors (Orange pictured) for $27.99 $29.39 with free shipping. That's $75 off list and the lowest total price we could find. It features adjustable shoulder straps and is waterproof. Deal ends December 29.

Note: Uncheck "Add Shipping Insurance to your order" during checkout to remove the 49-cent fee.