Bunny boots

Extreme Cold weather boots, originally issued to the military

Bunny boots or Mickey Mouse boots are the most common nicknames for the Extreme Cold Vapor Barrier Boots used by the United States Armed Forces. These large, bulbous, waterproof rubber boots can be worn in extremely cold weather, −20 to −60 °F, with the liner-free interior retaining warmth by sandwiching up to one inch of wool and felt insulation between two vacuum-tight layers of rubber; this vacuum layer insulates the wearer's feet similar to a vacuum flask. These boots were originally developed at the Navy Clothing and Textile Research Center in Natick, Massachusetts, for use during the Korean War.

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