Quick answer

Most knitted cardigans lose shape because of four things: hanging them on a hanger, washing in hot water, tumble drying, and storing them folded under heavy items. Fix a mildly stretched cardigan by hand-washing it cool, pressing the water out in a towel, and drying it flat while nudging the knit back to its original measurements. If the yarn has felted or the fibres have snapped, reshaping will not bring it back.

Find the cause before you try a fix

A cardigan that has grown longer at the hem almost always spent time on a hanger. A cardigan that has widened across the body but kept its length usually went through heat or agitation. A cardigan with a wavy, stretched neckline or cuffs often sat folded under something heavy for months. Matching the symptom to the cause tells you whether reshaping will work or whether you are wasting an afternoon.

  • Hem stretched down, shoulders still fine: hanging on a hanger.
  • Body wider, length mostly unchanged: heat or agitation in the wash.
  • Ribbed cuffs and hem loose and wavy: storage under weight or a hot dryer.
  • Patchy thinning or a fuzzy, matted surface: felted fibres, not stretching.

How to reshape a stretched cardigan after washing

Fill a basin with cool water and a small amount of gentle detergent. Submerge the cardigan, let it soak for ten minutes, then press it gently with your palms. Do not wring, twist, or rub the knit, because that is what turns a stretched cardigan into a felted one.

Lift the cardigan out supporting it with both hands and lay it on a clean towel. Roll the towel up with the cardigan inside and press down to pull out excess water. Lay it flat on a dry towel or mesh drying rack and gently push the sides, hem, and cuffs back to the measurements you want. Let it dry away from radiators and direct sun, turning it once. Reshaping works best on a damp cardigan, not a bone-dry one.

The care mistakes that stretch knitwear fastest

Hot water and a tumble dryer are the two biggest causes of a knitted cardigan losing shape. Heat relaxes the fibres and agitation pulls them out of place, and a dryer adds tumbling weight on top of that. Wash knitwear on a cool, gentle cycle in a mesh bag, or hand-wash it, and always dry flat.

Hangers are the third mistake. A longline cardigan carries more weight below the shoulders, so the knit stretches under its own mass over time. Fold longline and hooded styles instead of hanging them, and if you must hang one briefly, use a wide padded hanger and take it down the same day.

Knitwear storage tips that hold the shape

Fold cardigans and stack them no more than three deep so the bottom piece is not carrying the weight of the pile. Store them in a breathable cotton bag or a clean drawer rather than a vacuum bag, which crushes the loft of the yarn. Keep the folded shape close to the cardigan's natural silhouette: fold the sleeves across the body instead of tucking them behind, and avoid sharp creases along the front edge.

For hooded styles, lay the hood flat rather than folding it back on itself, so the weight of the hood does not pull the neckline down while it sits in storage. Rotate seasonal pieces to the top of the drawer so you are not digging through and re-compressing the same knits every week.

Diagnose your cardigan: symptom, cause, fix, stop point

  • Hem has grown several inches longer: The cardigan was hung on a hanger and stretched under its own weight. Re-wet it in cool water, press the water out in a towel, then dry it flat while pushing the hem back up to its original length. If the hem springs back when you gently stretch and release it, reshaping will work. If it stays put and feels thin, the yarn has given up.
  • Body is wider and the knit looks fuzzy: Heat and agitation in the wash or dryer have relaxed and roughened the fibres. A cool hand-wash and flat dry can smooth it slightly, but a matted surface will not return to its original loft. Stop here and retire the piece for everyday wear if the surface is felted. No amount of reshaping reverses felting.
  • Cuffs, hem, and neckline are wavy and loose: The cardigan was stored folded under heavy items or dried in a machine. Dampen it, reshape the ribbing with your fingers, and dry flat. Then move it to the top of the drawer and stop stacking weight on it. If the ribbing still has bounce, this fix is worth doing. If it hangs limp and flat, the elastic recovery is gone.
  • Cardigan fits but has a stretched-out hood or neckline: The hood or neckline was folded back on itself in storage or hung from a narrow hanger. Lay the hood flat, reshape the neckline while damp, and store the piece folded with the hood open rather than tucked. Choose another option if the neckline has torn or the seam has pulled. That is a repair job, not a reshaping job.

How this applies to specific Femme Luxe knits

  • Light Grey Knitted Long Sleeve Longline Hooded Cardigan - Emily: Light Grey Knitted Long Sleeve Longline Hooded Cardigan - Emily is a longline midi-length knitted cardigan with long sleeves and a hooded design, available in sizes. The longline length and hood both add weight below the shoulders, so this is exactly the style that stretches fastest on a hanger. Fold it flat, and if you hand-wash it, dry it flat while nudging the hem back to length.
  • Grey Buttoned Up Short Sleeve Ribbed Bodysuit - Joni: Grey Buttoned Up Short Sleeve Ribbed Bodysuit - Joni is made in a ribbed material with a buttoned-up design and short sleeves, available in sizes. Ribbed knits have more stretch built into the structure, so they can look misshapen faster when they are washed warm or dried in a machine. If you wear this bodysuit under an open cardigan, keep both on the same cool, flat-dry routine.
  • Cream Zip Up Hoodie Cuffed Joggers Loungewear Set - Sibyl: Cream Zip Up Hoodie Cuffed Joggers Loungewear Set - Sibyl is a matching zip-up hoodie and cuffed jogger set available in sizes 6-14. Cuffed joggers and a zip hoodie are knitted loungewear that also lose shape through heat and hanging, so treat the set the same way: cool wash, no dryer, folded storage.