The label fell off, but the base has a thin circle of cork.
It stands higher than my palm width - about 6 or so inches high.
The bas is 5-6 inches wide, the top is about 2-1/2 - 3 inches wide.
It tapers from the base up to about 4 inches, then rises cylindrically.
The handle allows all 4 of my fingers to fit fully, and is mounted in such a way with the tapering section and straight section, that it is on a slight angle, with about an inch under the bottom of it.
It is a plastic 'travel mug', with foam insulation inside the inner and outer walls. The inside is completely cylindrical. The top lip is awkward, as it has a clip on lid with a large hole to sip thru, and a small air hole on the opposite side. But when used with the lid on, it is easy to sip from, and the flow is restricted by the hole size.
It stays warm enough to drink for 3-4 hours.
I never realised before consciously just how comfortable it is, and why I drag it with me in the car (which is what it was sold for), then bring it inside for computing use. If going away for a few days to stay at a friends place, I often take it inside and then have tea in it while watching TV.