Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 58.

Västerbotten [1], 25/05/1732, ¶224:

Norwegian boots are 5 daler, but these can be bought for only 2 daler. In fact, all the leather that is cut up to make boot-soles is saved here, since a thick sole of 3 or 4 layers of leather is unnecessary. Heels are not needed since nature, which no one has yet managed to improve on, has not given human beings high heels. And it is quite apparent that people here walk as lightly and nimbly in these “kängor” as they do in bare feet.