A refreshing take on a classic favor! This 18 oz., Mood Poly-Saver Mate Bottle changes color with ice cold liquids. This exclusive design item is odorless, tasteless, wear-resistant and BPA-free. Available in a variety of colors, this USA-made bottle allows you to imprint a personal message or your company logo. Free lid assembly is available. Patent pending. Top shelf dishwasher safe. Warning: Severe weather conditions may effect the mood change.