EDIT: I get it, the consensus is that this is incorrect. I retract my statement.
Surprised no one has said this yet:
This happens when you put zip-up clothing in the dryer. The fabric shrinks and shifts but the metal/plastic zipper doesn’t, creating a size mismatch that results in a bulge. Hang-dry your zip-up hoodies instead. I have hoodies that are close to a decade old and still haven’t begun to bunch up because they’ve never seen the inside of a dryer.
This always is happens to my zip-up hoodies, and i’ve never used a dryer in my life.
I believe it’s just that the zipper is stiffer than the fabric, so it does not fold the same way as fabric does.
EDIT: I get it, the consensus is that this is incorrect. I retract my statement.
Surprised no one has said this yet:This happens when you put zip-up clothing in the dryer. The fabric shrinks and shifts but the metal/plastic zipper doesn’t, creating a size mismatch that results in a bulge. Hang-dry your zip-up hoodies instead. I have hoodies that are close to a decade old and still haven’t begun to bunch up because they’ve never seen the inside of a dryer.This always is happens to my zip-up hoodies, and i’ve never used a dryer in my life. I believe it’s just that the zipper is stiffer than the fabric, so it does not fold the same way as fabric does.
my family hasn’t owned a dryer in all the years i used to wear zip up hoodies and they still did that