I tossed this sweet little backpack in my carry on for a 10 day trip to Europe and I used it everyday. It's light as a feather, comfortable, and perfect for holding a water bottle, rain jacket, hat, sunglasses, wipes, etc. I never had to check it at museums. I just lengthened one strap and wore it as a cross body bag. The toggle clasp on the zipper is a nice addition as it would certainly slow down any pick pocket activity. Now that I'm home, I use it everyday for my dog walks because it's so comfortable. AND it's machine washable.