This stainless steel bottle is extremely durable and sturdy. The sizing is perfect to fit in cup holders. It comes with two straws as well as two lids; one for cold drinks and one for hot. It keeps both temperatures insulated pretty well. I love that I can use it for days I want cold drinks as well as for those days when I want a hot drink. I also like that the design is nice, smooth, and conservative. The only con of this bottle is that opening knobs/latches require effort on your part. This makes me thinks twice sometimes before opening it to grab a sip as it is not so simple. Sometimes I end up just leaving it open to avoid having to open it again.