Collapsible Water Bottle, 20oz/590ml, platinum silicone, BPA and BPS free. Features a screw-on, loop cap that creates an airtight, leak-proof seal and can be attached to your bag strap for more space efficiency. This bottle collapses from a height of 18cm down to 8cm making it ultra-portable to fit into any pocket, purse, glove compartment or backpack. Contains no phthalates or glues.