Lopapeysa, the sweater Iceland knits in the round

The Icelandic sheep arrived with the settlers around the year 874 and has been kept pure since: no crossbreeding, by law. Its fleece grows in two layers, a long weatherproof outer hair and a soft insulating undercoat, and lopi yarn spins both together. The result is wool that is light, warm when wet, and almost windproof.

A lopapeysa is knit in the round, body and sleeves joined into one piece at the yoke, where the pattern radiates in concentric rings. No seams anywhere is the test: if a sweater sold as a lopapeysa has shoulder seams, it came off a sewing machine, not a pair of circular needles. The classic yoke patterns date only to the 1950s, which surprises people; Icelanders made something traditional in one generation.

Hand knitters across Iceland sell through cooperatives and their own needles, and the wool must be Icelandic for the name to mean anything. On 1VIM the knitter's pin sits in Reykjavik, the price is theirs, and the sweater ships from the island with the door price shown before you pay.