they weren't joking about this being light! big enough to eat cereal/soup and it wakes you up by filling up w/ a ton of coffee! I have also used this on top of a proprane burner and it worked well. no discoloring or warping. this cup is my new camping companion. love the little mesh sack that it comes in too, perfect for traveling so that it will not get damaged in your pack or if you want to combine other things w/ it for packing.