I've tried it all, velour, sheepskin, PA whatever.
I lose some of the bass in my Meze 99 from the original pads, but the drivers themselves are strong enough to still give a great punchy and tight bass. Actually prefer the soundstage these give, feels a bit wider.
There's a bit too much fake leather on the part where you strap it to the cans, so you'd need to do some kind of smart stuff to make it perfect, I just left as is. Looks good enough.
They are just SO soft my girlfriend immediately demanded I buy her not only one, but two so she has a spare of the XL ones to fit her Beyerdynamics!
Buying another one for my other cans too, god damn!