Steel Insulated Mugs

insulated
Protect from the unpleasant effects or elements of something
(insulate) protect from heat, cold, or noise by surrounding with insulating material; "We had his bedroom insulated before winter came"
Prevent the passage of electricity to or from (something) by covering it in nonconducting material
(insulate) isolate: place or set apart; "They isolated the political prisoners from the other inmates"
Protect (something) by interposing material that prevents the loss of heat or the intrusion of sound
(insulation) the state of being isolated or detached; "the insulation of England was preserved by the English Channel"

steel
get ready for something difficult or unpleasant
cover, plate, or edge with steel
an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
Mentally prepare (oneself) to do or face something difficult

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