Bought this as a gift for my boyfriend. We are both gym rats and he used to buy 7 plastic gallons of water a week, one each day to take to the gym and carry throughout the day. I got so annoyed with the plastic usage & trash accumulation that I forced this bottle on him - especially since I use reusable bottles. Now at the gym I don’t even take mine I steal water from his - and ended up ordering a prettier color for myself. It’s plastic so it doesn’t keep it cool, but the stainless steel bottles can be a little too heavy to be practice at this size. I like the size because then you can carry it all day with you without having to look for a place to refill it.