Collapsible Biggie Cup, with silicone straw, 16oz/470ml, steel blue. A revolutionary design that combines flexible, food-grade silicone and food-safe, recycled materials resulting in a cup that's collapsible and reusable for drinking on the go. Equipped with a silicone straw, a convenient heat sleeve and leak-proof lid with stopper. This cup collapses from a height of 14cm down to 5cm making it ultra-portable to fit into any pocket, purse, glove compartment or backpack. BPA FREE. LEAD FREE. Contains no phthalates or glues.