My daughter and I both love these steel water bottle canteens that they carry. We enjoy exercising in the outdoors, and with a vigorous work out water is a must! The plastic water bottles that we have used most of out lives gave the water an unnatural taste. We decided to give these steel canteens a try and they worked wonderfully! Plastic to steel was like night and day, and the steel truly preserves the pure water taste the best. After using both types, we both agree that the steel water bottle canteens are the best way to go!