Final answer:
Hairdressing capes used for shampooing, wet hair sculpting, designing, and chemical services are made of plastic or nylon.
Step-by-step explanation:
The capes used for shampooing, wet hair sculpting, designing, and chemical services are made of plastic or nylon. Nylon is a type of polyamide that is widely used in various applications, including fabrics, ropes, sails, carpets, clothing, tires, brushes, and parachutes. It is a durable and stain-resistant material, making it suitable for hairdressing capes.