A kind of boot invented and named by the native Alaskan Inuit peoples, who made them out of the skin of a seal or reindeer and lined them inside and out with fur for warmth. The word derives from the word maklak, or bearded seal.
Today, the style is copied by numerous shoe and boot manufacturers using more-common sheepskin or cowhide leather and usually with a fleece or wool lining. The word "mukluk" is sometimes abused and used to refer to slippers or moccasins instead of boots.