Way more economical the buying the actual Bose brand replacements. Leather seems to be about the same quality. Hard to say if these are more firm than the Bose because most reviewers are comparing them to the broken in headphones pads they are replacing
Replacement Ear-Pads Cushions For Bose QuietComfort 35 (QC35) And QuietComfort 35 II (QC35 II) Over-Ear Headphones - Midnight Blue
27 Review
Black Replacement Ear Cushion Cover For Razer Kraken Pro V1 Gaming Headphone Ear Pad
21 Review
🔵 Set of 8 Grey Replacement Eartips for Beats by Dr. Dre Powerbeats 2 Wireless Stereo Earphones
32 Review
Replacement Earpads Cushion Cover For Razer Kraken Pro V2 Gaming Headphone (Grey) - Compatible With Kraken Pro V2
17 Review