Haberdashery and Cloth

Hi all

I have bought some 17oz 80% wool 20% Cashmere fabric from Holland and Sherry with silk lining for Rory’s overcoat online lessons. I’m a little nervous about pre washing both the wool and the silk. Any recommendations welcome. I was planning on washing separately on a delicates machine setting with delicates detergent and hang drying outside.

Thanks