I purchased these for my trip to Iceland. We traveled with a carry on pack only and did not check any luggage so wanted to fit as much as I could. These backs are so well made and sturdy. I was able to fit TOO MUCH stuff in all three of them. I ended up overpacking but all three of these fit base layers, leggings, thermals, shirts, underwear, socks, hats, all of my clothes for 10 days of travel. My bag ended up being so heavy due to all the items I was able to stuff in these bags. It was pretty great!