Husband used this pack for our trip to Brazil and Peru. He was able to fit seven days worth of clothes and a pair of shoes. He had plenty of room for a few souvenirs, and his bathroom essentials. His only negative was that the padding in the laptop zipper section was too thick. Which is only a negative if you aren’t carrying a laptop or tablet. The size (fully extended) was perfect for smaller airline flights throughout South America. Also, on the last day in Brazil it poured. Everything inside the pack stayed dry. Can’t wait to take it on another trip! Highly recommend this pack!