Refill. Refresh. Repeat. We poured a (practically) bottomless amount of intuitive, drinker-friendly design details into this stainless steel tumbler: Leakproof interchangeable lid, no-look-sip indicator, built-in coaster, effortless flip n sip way to drinkthe list goes on (scroll down to see it all). It goes without saying (but well say it anyway) thatll youll also get super long-lasting hot/cold retention. And at 40 ounces, this powerful, reusable large vessel is great for any energizing liquids you need to get you through your day.