To wear this vintage Norwegian knitted cardigan, simply slip it on over your head and adjust it on your shoulders. You can pair it with a T - shirt in summer or a long - sleeved top in winter. When it comes to maintenance, it's best to hand - wash it in cold water to keep the knitting in good condition. Avoid using harsh detergents as they may damage the fibers. After washing, lay it flat to dry instead of hanging it, which could stretch the cardigan. And always store it in a cool, dry place to prevent any mold or mildew from forming.