LAKEN outdoor brand water bottle and insulated bag. It can be carried over the shoulder, or the strap can be removed and put in a bag. I bought it two years ago and have used it 4 or 5 times, and I think it's in good condition. I bought it because the color and orange pattern are cute, but I don't use it, so I'll give it to someone who will. The water bottle has a one-touch cap that opens, allowing you to drink directly from the mouth, making it easy to stay hydrated. It's not a Thermos, so the cooling power is inferior, but if you put ice in it and carry it in this insulated case, it should be fine for a while. It's also good for replacing drinks you bought from a vending machine while you're out and about.