Plastic Insulated Mugs

insulated
Protect from the unpleasant effects or elements of something
(insulation) the state of being isolated or detached; "the insulation of England was preserved by the English Channel"
(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
Protect (something) by interposing material that prevents the loss of heat or the intrusion of sound
(insulate) isolate: place or set apart; "They isolated the political prisoners from the other inmates"

plastic
generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives
A synthetic material made from a wide range of organic polymers such as polyethylene, PVC, nylon, etc., that can be molded into shape while soft and then set into a rigid or slightly elastic form
Credit cards or other types of plastic card that can be used as money
fictile: capable of being molded or modeled (especially of earth or clay or other soft material); "plastic substances such as wax or clay"
capable of being influenced or formed; "the plastic minds of children"; "a pliant nature"

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