heavy duty and will definitely protect airpods. OTherwise, they have the same firm and comfortable footbed without "cupping" the feet as the Kadee IIs. And they are really pretty on my feet. When I opened this out of the box and stuck the suction cup to the screen, the thing would at most stay on for several seconds before de-placing and falling off soon after. I recently also purchased a pair of 3 Ms because of an issue Im having with the back of my eye glasses getting pushed into my brain after a couple hours and the pain becomes intolerable. BUT THESE FIT holy cow, I finally found some cheap headphones, with the little clip thingy above them THAT FIT ME! Personally it wasn?t what I was looking for, I wanted something for my dogs if they ever got away that was very loud. Things are looking good for now. These shoes are adorable baby espadrilles. I definitely feel like Ive gotten my moneys worth.