[Alchemistt]

Are you interested in the lifespan of velor ear pads, such models: BEYER.DT990, BEYER.DT770, Superlux HD 660 PRO, AKG K702, Sennh.650?

How quickly they lose their shape and become unusable.

 

[Sefelt103]

Usually a few years depending on amount of use, environment and a whole lot of other related factors.

https://diyaudioheaven.wordpress.com/headphones/earpads/