TomTop offers the Tomshoo 70L+5L Mountaineering Backpack in Blue or Black for $45.99 with free shipping. (Make sure "United States Warehouse" is selected under "Ships From" to see this price.) That's the lowest price we could find by $34. This water-resistant backpack measures 32.3" x 13.8" x 9.1" and features an internal metal frame, main compartment with divider, top extension collar with drawstring, multiple pockets, rain cover, and padded shoulder straps and hip belt.
Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily.