Lay a towel on a hard, flat surface. Lay the sweater on top of the towel. Gently roll the sweater up in the towel to remove any excess water. Don't squeeze tightly or try to wring out the water as this will stretch the fabric of the sweater. Unroll the sweater from the towel.
Lay out a second, dry towel. Lay the sweater flat on top of the towel. Use your hands to reshape the sweater. Necklines, wrists and waistlines in particular tend to pucker in the wash. Do up any buttons, zippers or snaps.
Let the sweater dry for 24 hours. Turn the sweater over and repeat the same process on the other side.