lol. No, it isn't lined with anything, I just wanted to try it. During softball season, we're usually out on the field for hours so I always bring a bag full of drinks for the girls. When I made it, I stayed simple b/c I was planning on that being the use. I left the two top caprisun packs open on each side to use as a pocket. I can post the directions if you guys like. I used invisible thread to sew it, which worked great. I hadn't used that thread before. The only irritating part was the bottom but it wasn't that bad.