Dryer Leaving Holes in Clothing

I was also going to say it could be zippers on other clothes causing this.

Are you sure it's happening in the dryer? Where do your dirty clothes sit,in a hamper or on the floor? It could be crickets, moths or something else chewing holes in them.

We went through a spell when I had 4 kids at home, where I was always finding tiny holes in the kids shirts & sometimes even mine. I couldn't figure out what was causing them. My kids were bad about leaving their clothes on the bathroom floor or 'missing' the hamper in the laundry room, occasionally knocking mine out in the process. When I read that bugs will chew tiny holes in your clothes, I connected that with the occasional cricket I'd find in the house (especially in the laundry room,where they were coming in the dryer vent hole). Once I enforced the rule of no clothes on the floor, the holes quit popping up. Even now, years later, I will invariably find holes in some of the shirts if they are left on the floor by my boys.

I also sealed off the dryer vent where it exits the house & put cricket bait out to get rid of the crickets.

Sometimes zippers from jeans can do this. It is a good practice to zip up any zippers before putting them in the wash. I hope this helps.