double faced fabric::  https://dndfabrics.com/ 

Double Faced Fabric features two finished, attractive sides, making it perfect for reversible sewing projects. Ideal for jackets, scarves, blankets, and accessories, it eliminates the need for lining while offering versatility and style. Durable and easy to work with, this fabric allows you to create polished, functional designs that look great from every angle, inside and out.