NEW Stanley 40 oz IceFlow Flip Straw Tumbler Cup Lilac Purple Handle Bottle Get sustainable hydration with the IceFlow Flip Straw 40 oz Tumbler. Ready to toss in your bag, the tumbler with a straw slips right into your car cup holder for refreshment on the go. The Flip Straw lid is designed to keep up with you, so you stay hydrated all day long. The 40-ounce IceFlow Flip Straw Tumbler has a wider opening and built-in straw for quick sipping. Just flip up to drink, then snap shut when you're done. Thanks to double-wall vacuum insulation, your drink stays cold for hours. Grab the easy-carry handle and take along for the day. New with tags