Earlier this year I was looking for a decent pair of headphones and was disappointed to find most of the high-end pairs use animal skin on the headband and ear cushions. Thankfully I figured out that the Bose QuietComfort 25 (and 35) use synthetic leather. I’ve been using the 25s for a few months now, and I can honestly say they are the best sounding headphones I’ve ever owned. If you’re vegan/vegetarian and looking for some decent headphones, the Bose QuietComfort are an excellent choice.