Double Wall Stainless Mug

double wall
A Combination of two flute sizes, usually 'B' and 'C', is specified when compression strength is more important than storage and robustness.
Refers to the internal heat exchange coil in an indirect water heater as two layers of glass-lined steel.
a studio construction technique that achieves sonic isolation (i.e., soundproofing) by building a "room within a room": using a second set of wall studs that are typically offset from the outer wall's studs.

stainless
Stainless is a WebKit-based web browser for Mac OS X by Mesa Dynamics. Stainless started out as a technology demo to rival the multiple-process architecture of Google Chrome, but then went into its own direction.
Unmarked by or resistant to stains or discoloration
(of a person or their reputation) Free from wrongdoing or disgrace
(of reputation) free from blemishes; "his unsullied name"; "an untarnished reputation"
stainless steel: steel containing chromium that makes it resistant to corrosion

mug
A person's face
the quantity that can be held in a mug
A large cup, typically cylindrical and with a handle and used without a saucer
The contents of such a cup
rob at gunpoint or with the threat of violence; "I was mugged in the streets of New York last night"
chump: a person who is gullible and easy to take advantage of