You pull your favorite chunky cable-knit out of storage, excited for the first truly crisp day of fall, and something feels off. The shoulders sag. The sleeves droop past your wrists. The whole thing looks like it belongs to someone two sizes bigger. You stored it carefully – or so you thought. Turns out, the very tool you trusted to keep it organized in your closet may be the reason it no longer fits.
Why your knitwear loses its shape between seasons
There is a specific closet habit that two fashion experts point to as the single biggest culprit behind misshapen sweaters, and it is one most of us practice without a second thought: hanging them up. Tricia Chen, owner of the fashion and beauty blog Happily Ever Style, notes that even though it might not seem like a significant issue at first, placing a sweater on a hanger can gradually alter its overall silhouette and the way it fits your body.
But why does something as seemingly harmless as a hanger cause so much damage? Bridgette Raes, president of the personal styling company Bridgette Raes Style Group, explains that gravity is the real adversary here. When a sweater sits on a hanger, the weight of the knit pulls downward on the fabric’s original construction. Over time, this persistent force causes the shoulders to become misshapen, often leaving noticeable bumps right where the hanger rests. The body and sleeves can also stretch and lengthen, and eventually the sweater loses the shape and fit it had when you first bought it. Delicate knits and heavier sweaters are especially vulnerable to this kind of distortion.
So if you have been blaming your dryer or a rough wash cycle for your baggy knitwear, the answer might have been hiding in plain sight on the rod of your closet all along.
The smarter way to store sweaters year-round
Both experts agree on one straightforward swap: fold your sweaters instead of hanging them. Chen recommends storing them folded flat in a drawer or on a shelf to protect their silhouette. The key detail, according to Raes, is giving each piece enough breathing room. Cramming them into tight spaces can cause creasing, which trades one problem for another.
When it comes to off-season storage, Raes suggests washing your sweaters before tucking them away and then placing them in breathable bins or dust bags. Letting the fibers air out in a breathable container helps prevent mold and mildew from developing over the months they sit unused. Chen adds that slipping lavender sachets alongside your folded knitwear is an effective way to keep moths at bay.
Speaking of moths, Raes stresses the importance of periodically checking on stored sweaters. Moths thrive in dark, undisturbed spaces, so pulling your knits out every few weeks and giving them a gentle shake can help discourage infestations. If you do discover the fabric-eating insects, Raes recommends sealing the affected sweater in a plastic bag, freezing it for three days, letting it rest at room temperature for three days, and then freezing it again for another three days. That cycle eliminates any newly hatched larvae.
Washing, drying, and daily care that actually extends the life of your knits
Storage is only part of the equation. How you wash, dry, and rest your sweaters between wears matters just as much. After wearing a knit, resist the urge to toss it straight into the washing machine or lay it out for the next morning. Wool and cashmere fibers naturally rebound when they are given 24 to 48 hours to rest, which helps them maintain their shape longer, according to Raes. The same principle applies to sweaters fresh out of storage – airing one out for a few hours before wearing it helps freshen up the fibers.
When it is time for an actual wash, Raes advises soaking the garment in cold water with a gentle detergent for 15 to 30 minutes. That approach minimizes the risk of snagging, tearing, discoloring, or shrinking. Skip the dryer entirely. Instead, gently press excess moisture out with a towel and then lay the sweater flat to dry.
Chen cautions against over-washing, too. Cleaning your knits after every single wear can break down fibers much faster, especially in materials like wool and cashmere. Unless you have visibly soiled or sweated through a sweater, simply airing it out between wears is sufficient. For isolated stains, Raes recommends trying a spot treatment first rather than running the whole garment through a full wash.
And then there is pilling – those tiny tangled fiber balls that make even a newer sweater look tired. Most knits can be refreshed with a fabric shaver, but cashmere calls for a gentler touch. Raes suggests using a cashmere comb on those delicate fibers to avoid causing further damage.
The takeaway for sweater season and beyond
The single most impactful change you can make for your knitwear is also the simplest: take it off the hanger and fold it flat. From there, a few mindful habits – resting fibers between wears, washing gently and infrequently, storing in breathable containers with lavender sachets, and checking periodically for moths – will keep your sweaters fitting the way they did when you first fell in love with them. Fall is too short to spend it in stretched-out knits, and now you know exactly how to avoid that fate.