The Aran jumper (Irish: Geansaí Árann) is a style of jumper that takes its name from the Aran Islands off the west coast of Ireland. A traditional Aran Jumper usually is off-white in colour, with cable patterns on the body and sleeves. Originally the jumpers were knitted using unscoured wool that retained its natural oils (lanolin) which made the garments water-resistant and meant they remained wearable even when wet.