Understanding Why Jeans Develop Wavy Legs or Twisted Seams After Washing

can become surprisingly obvious.

What Is “Leg Twist”?

The phenomenon is often called leg twist or twisted-leg denim.

Instead of the seam remaining perfectly along the side of your leg, it gradually rotates.

You might notice that the seam seems to move toward the front of your calf or toward the back.

This can happen even when the jeans fit perfectly when you first buy them.

The effect is particularly noticeable after repeated washing because the fabric continues to respond to moisture, heat, friction, and movement.

Why Some Jeans Twist