I bought this to have an "emergency travel kit"; I liked that it was see-through so I could pack far in advance and not have to unpack to see what was in it. Also great for keeping in the car; again, I like that it's see through because I wanted to have it for certain occasions only, and to keep it prepacked, and I didn't want to forget what was in it. It's very sturdy!! I was surprised at the thickness of the vinyl. If necessary, for privacy concerns, it would be easy to put a scarf or similar item against the inside vinyl; you could also personalize your backpack that way, like a skin! I am strongly considering buying another. I know these are mostly for kids at school but I am in my 40s!