This bottle is great! It definitely keeps my beverages cold for hours. It is so nice to have a refreshing drink hours after filling it up. What I love about this bottle is that it is LIGHT! Every other insulating bottle I own is so heavy even when empty, so I hate to carry it around, but this one is nice and light. It also has the hook, which I end up carrying it from but haven't hooked it onto any bags or anything, but I think it might be helpful when going on a walk or hike. I got the purple bottle, and I love the color. My friend's saw it and were like "whoa that looks nice!" because it just looks quality. Definitely recommend!