Hello @vanmuldo,
you can purcahse them directly from Sonys spare-part-partner "EET-Europarts": https://uk.eetgroup.com/i/428614501-Sony-Ear-Pad-1-pcs
Here you can find other spare parts for your headphones:
https://uk.eetgroup.com/search?query=MDR-V150
You may also purchase them from a third party seller.
- Nic
