I ended up getting one of these from aliexpress: https://es.aliexpress.com/item/32957974090.html?spm=a2g0o.order_list.order_list_main.16.722f194dn5TV3q&gatewayAdapt=glo2esp In brown to match the pads. It's not the best, but you can't ask for more for 4 bucks.

Hi, guys, first post here! Could you recommend a headband cover for the msr7b? Mine has just disintegrated :( Thanks!