Why Do Jeans Get Weird Ripples After Washing?

2. The Washer Twists and Stretches the Fabric

Even without high heat, the washing machine itself can cause distortion.

Jeans aren’t gently soaking—they’re being tossed, twisted, and pulled in every direction. When the fabric is wet, it’s heavier and more vulnerable to stretching.

Overloading the washer makes this worse. Clothes tangle together, and certain areas of the jeans get pulled more than others.

Stretch denim is especially sensitive. As it dries, some sections remain under tension while others relax, creating those familiar wavy ripples and puckers.

3. Uneven Drying Locks the Ripples In

Dryers add another layer of trouble. Tumbling causes denim to dry unevenly, and heat “sets” the warped fibers in place.

Once the jeans cool, those ripples aren’t just wrinkles—they’re structural changes in the fabric.

That’s why ironing often doesn’t fully fix the problem.

How to Prevent Ripples in Your Jeans

You can’t undo damaged fibers, but you can prevent future pairs from suffering the same fate:

  • Wash less often (spot-clean when possible)

  • Turn jeans inside out

  • Use cold water only

  • Choose a gentle or delicate cycle

  • Avoid overloading the washer

  • Skip the dryer or use low heat

  • Air-dry flat or hang by the waistband

If your jeans contain stretch, heat is their biggest enemy.