I have no scratches either.
However, I only use the headphones indoors.
For outdoors, I have my Buds...

Hi Huwy. I don't have any scratches on my helmet because I bought a case for it.
Have a nice day

Plastic scratches faster than metal. This will not be different for most headphones, as metal is too heavy as a construction material. Destotrotz are my headphones practically scratch-free, maybe you can use a bag for transport?

Hi Huwy,

we recommend that you store the headphones in a case or bag when not in use.

Sony Europe