evo.com | Stanley Water Bottles > Stop, collaborate and drink it. The Stanley The IceFlow Flip Straw 20oz Tumbler is a whole new invention. Grab ahold of it tightly, cold water flows through the leakproof flip straw daily and nightly. Seven hours cold and 35 hours iced iced baby. One Mug and Lid with Flip Straw. Double-Wall Vacuum Insulation 3.5L x 4.1W x 7.8H in Weight 1.1 lbs 18/8 Stainless Steel / BPA-Free | Stanley The IceFlow Flip Straw 20oz Tumbler 2024 in Purple