I’ve been looking for something like this for years now but couldn’t find the right one! I use it a lot for full day hikes, especially in the summer months. It keeps all food items cold when it’s really hot out. It fits nicely in the backpack. I know some people had issues with water accumulating inside if you put an ice pack into the bag, but I never had that problem. I use one ice pack and it’s fine, no water inside at all.I really love this lunch bag!! My whole family has been using it.