noun
Refers to animal skin that has been tanned and processed into a durable material. Used for clothing, accessories, furniture, etc.
このバッグは本革でできている。
This bag is made of genuine leather.
革の手袋を買った。
I bought leather gloves.
皮 refers to raw skin, peel, or rind, while 革 specifically means tanned leather.
The kanji 革 originally depicts an animal hide being stretched on a frame, representing the process of making leather. The reading かわ is the native Japanese word for skin or leather.