SOULWIT 6Pcs Replacement Earpads for Koss Porta Pro, KSC11, KSC17, KSC75 Headphones, Soft and Durable Sponge Ear Pads Cushions with High-Density Foam - Black

I rarely pimp product, but just got these and happy with it https://www.amazon.com/dp/B0F4XLTG28?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 THREE! pair and the side foams for < $10 Seems good quality.