Long days at the beach. Twelve-mile hikes. Overtime at work. When things heat up, toss this in your bag—your drink will stay cool, and your stuff will stay un-spilled-upon.Drinks stay cold for 40 hours with ice, 15 hours without thanks to vacuum insulated stainless steel.Leak-proof lid keeps liquid out of your lap, and everywhere else.One-hand push-button lid means you always have a free hand, and the opening stays clean even if you stuff it in a bag.Lanyard for easy carrying. Dishwasher safe because who wants to scrub?BPA-free because that stuff’s not good for you.