How to keep clothes from shrinking
Shrinking is heat plus agitation. Keep both down and read the label, and most clothes hold their size. Here's the playbook — and a rescue for what already shrank.
Why clothes shrink
Three things drive shrinkage: heat, agitation, and the fiber itself. Natural fibers like cotton and wool are far more prone than synthetics like polyester.
The care label is your early warning — the wash-temperature number (or dots) and the tumble-dry symbol tell you how much risk a garment carries.
Wash cold, spin gentle
Hot water makes fibers constrict — that's the shrink. Washing in cold water on a gentle cycle avoids most of it, and modern detergents clean perfectly well cold.
Don't overload the machine; friction between crammed clothes adds to the agitation that shrinks and pills fabric.
Air-dry when you can
Dryer heat is the single biggest culprit. Lay flat or hang to dry whenever possible, especially for knits and loosely woven pieces.
If you must use the dryer, choose low or no heat (air dry), pull clothes out while slightly damp, and don't run them through repeated cycles.
'Pre-shrunk' isn't shrink-proof
Pre-shrunk means the fabric was shrunk once during manufacturing to reduce future shrinkage — not that it never shrinks. Pre-shrunk cotton can still lose 1–5%; untreated cotton 5–10% or more.
How to rescue a shrunken garment
Often reversible, especially cotton and wool. Soak the item in lukewarm water with a good splash of hair conditioner (or gentle fabric softener) for 10–30 minutes to relax the fibers.
Gently squeeze out water — don't wring or rinse — lay it on a towel, then carefully stretch it back toward its original dimensions and let it air-dry flat.
Guidance follows American Cleaning Institute , Woolmark care guides and FTC Care Labeling Rule . A guide, not a guarantee — always defer to your garment’s own care label.