Chilly's Series 2 Water Bottle Galaxy 500mlChanges with the light. Stays cold all day. Introducing our first cosmic colourshift finish Galaxy transforms before your eyes while delivering unwavering 24 hour cold performance. This high gloss chameleon shifts through blue spectrums depending on your environment, making every angle a new discovery. Antimicrobial drinking surface and leak proof design that's as reliable as the color change is unpredictable. Dynamic finish. Dependable function.