REAL Lambskin Leather Ear Pads: It offers luxurious, soft, and cool feeling on skin contact. Breathable Material: This natural lambskin is porous, allows air circulation, and ensures cool feeling for prolonged headphone usage. Good Durability: Lambskin does not flake and deteriorate by contacting with sweat and skin oil. Seams are sewed by threads and do not split open over time. Excellent Noise-Canceling: The pad uses high density foam to ensure good seal for noise-canceling and sound performance. Easy Installation: All earpad mounting flanges are cut out by stamping machine with accurate dimensions, offering consistent fitting to headphones. A small tool is included in the package to assist installation.