The Stanley Quencher ProTour Flip Straw Tumbler 40 oz is designed for maximum hydration with double-wall vacuum insulation that keeps drinks cold for 11 hours and iced for up to 2 days. Made from durable 18/8 recycled stainless steel, it features a leakproof ProTour Flip Straw lid, a removable spout, and a replaceable seal for easy cleaning and long-lasting use. The textured comfort-grip handle and car cupholder-compatible base make it perfect for on-the-go lifestyles. BPA-free and ideal for custom logos, it's a top choice for branded drinkware.