Leather
Hides, Pelts
noun
Skin leather is really just leather because leather is also skin. It's also hides.
The reading is the on'yomi readings of the kanji. You should know them both already!
何度か洗濯したら、皮革の色があせ始めたんだけど、もしかしたら洗っちゃいけなかったのかな。
After washing it several times, the color of the leather has started to fade. Now I’m wondering if I was even supposed to wash it.