Adidas does not use angora, cashmere or any other exotic animal skins or hair, which is a step in the right direction. However, it does use leather, wool, and down feather without specifying sources. This is problematic because, without transparency, the welfare of workers and animals is unknown and cannot be guaranteed. Having said that, Adidas states that it uses wool from non-mulesed sheep and is working with the Leather Working Group to improve the sustainability of the leather industry