This 500ml Tritan bottle, in lilac/green, from iDrink, reference ID2120, is a reusable bottle made of transparent copolyester. Tritan is a BPA-free, transparent, and virtually unbreakable copolyester that does not retain odors or stains and is resistant to both heat and cold, and is dishwasher safe. This is the most compact version of the same lilac/green pattern, also available in 1000ml and 1500ml. It is a preferred option for those who like this softer contrast but prefer the smaller size in this range.