I've stuffed them full to overflowing with all the crap you usually put in a bag and then some. ... And they’ve all held up to everything incredibly well." Large, sturdy and great for gifting ...
The Travelpro Altitude Medium Backpack has a large 25-liter packing space that expands to 30 liters when you unzip the expansion compartment ... the side of the bag and a hidden anti-theft ...