Handwash only. When washing your sweater make sure the water is lukewarm and use wool soap or mild soap. Soak your sweater in the soapy water for about 10 minutes, do not wring or rub. Then change the water and rinse the garment thoroughly. Wrap your garment in a towel and carefully squeeze out as much water as possible. Then place your sweater flat on a dry towel and pull gently into shape. When washing a cardigan, help keep their shape by buttoning them before washing.