A thermal boot made from reindeer skin and fur.(noun)
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Use "finnesko" in a sentence
"'finnesko' over which it is laced -- they are less than half the weight of an ordinary ski boot, go on very easily, and secure very neatly."
"My hands tremble tying the ropes around his finnesko."
"No snow had penetrated the inner lining and all their equipment was neatly stowed -- pannikins, spare clothing, chronometers, finnesko, socks and a flag as well as more letters, and, movingly, the "chatty little notes" the supporting parties had left for Scott as they returned to Cape Evans."