Koss Portable Replacement Cushions Go to amazon.com Related posts The 10 best koss porta pro cushions 2024 FeatureFits Koss KSC11, KSC17, KSC75, PortaPro, and KTXPro1 headphonesOpen, hear-through design6 per pack DescriptionKoss Extra Portable Cushions for your portable stereophone.