The Stanley 30 oz Quencher ProTour Flip Straw Tumbler is a durable, stylish hydration companion made from 18/8 recycled stainless steel and featuring double-wall vacuum insulation that keeps drinks cold for up to 9 hours and iced for 40 hours. Its leakproof ProTour lid offers a convenient flip-up straw that snaps shut to prevent spills, complemented by a removable spout and replaceable seal for easy cleaning and maintenance. Designed with a comfort-grip handle that fits most car cupholders and built to be dishwasher-safe and BPA-free, it's both practical and eco-aware.