Knitwear requires care to keep it looking neat. Remove pilling with a special cutter, a knitwear comb or a soft clothing brush.
Do not machine wash wool knits, as even wool washing programs can be too harsh.
You can air your knitwear to get rid of smells and hand wash cold with mild detergent if needed. After washing, gently squeeze the item to remove excess water, then lay flat to dry at room temperature.