Patterson 16 Oz Wide Base Travel Mug with Handle, Blue This mug will not tip over as easily as insulated tumblers due to it's wide stable base Your coffee will cool to a drinkable temperature but remain hot long enough for you to slowly sip for a couple hours The lid on this mug will prevent spills and splashes when in the closed position -- it is not however leakproof Drinking from this mug will feel like you are drinking from a regular coffee cup with a stainless steel lip This mug will easily fit under single serve coffee makers as it is shorter than typical insulated tumblers