This 750ml Tritan bottle, with a Unicorn theme, from iDrink (reference ID2120J), 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 larger capacity version of the same unicorn theme, also available in 500ml. It's a preferred option for fans of this magical theme who need more volume than the 500ml version.