This tumbler is not a delicate f-ing flower-and neither are you. The lid has a slide closure, and the body is stainless steel. It keeps your hot drinks hot for up to 5 hours and your cold drinks cold for 15. You don't need to wait for that cup of joe until noon just because you can't stand to drink it as soon as it's brewed. And if you've recently gotten into the habit of drinking more water (and less soda) at work? This one's for you.
.: Double-wall construction
.: One Size: 11oz (0.32 l)
.: Material: stainless steel 
.: BPA free
.: Vacuum insulated
.: Clear, press-on lid with slide closure