Official Replacement Black Velour Ear Pads + Inner Foam Discs for HD25 Headphones, by Sennheiser | Audio Sanctuary
Sennheiser Ear Pads (520378) – Thomann UK
Upgraded Earpads for Gaming, With Cooling Gel, Memory foam & Micro Suede, Ideal for Long Wearing, Oval, For Steelseries, HyperX, ATH-M50X & More - Brainwavz Audio
Geekria Sport Cooling Gel Replacement Ear Pads for Sennheiser GSP 600, GSP 670, GSP 500 Professional Gaming GSP 601, GSP 602 Headphones Ear Cushions, Ear Cups Cover Repair Parts (Black) - Walmart.com
How to Replace Headphone Ear pads for Sennheiser HD 25 - YouTube