The lttl tumbler is one of the first on-the-go insulated mugs with an authentic, cup-like sipping experience that’s truly easy to clean. Instead of a lid that goes on top, the lttl tumbler’s stopper fits down inside so you can drink directly from the edge of the vessel – just like a normal cup. Sip naturally from any side, 360˚ around. The patent-pending stopper regulates flow for the perfect sip without splashes or overflow. All-around aroma venting allows full-sensory enjoyment of your favorite brew. The lttl tumbler has been designed from the ground up for super easy cleaning. The stopper is a single seamless part – there are no hidden crevices, no disassembly required, nowhere for gunk to hide! Down below, the vessel has a wide opening to fit a sponge or brush easily. The vessel’s microscopically-slick electropolished interior resists stains and odors. When it’s this easy to keep clean, your drink will always taste the way it should. With a twist of your fingers, the stopper seals tight, securely recessed inside the vessel. The single silicone gasket creates a reliable leakproof seal so you can conveniently carry the lttl tumbler in a bag or purse without worrying about messy spills and stains.