This Hynes Eagle Flight Approved Carry on Backpack is the perfect companion for your travel and outdoor activities. The backpack can hold up to 40L capacity. It features a spacious main compartment with internal tie-down straps, an internal laptop sleeve that fits up to a 15.6″ laptop, and a large side pocket that can fit a water bottle. This backpack is constructed from polyester material, it is lightweight and durable for daily use. Its contoured shoulder straps are stowable, they can be tucked away into the back panel when not needed. It also has an adjustable sternum and waist strap for a comfortable carrying experience.