Final answer:
Salon capes for shampooing, wet haircutting, styling, and chemical services are typically made of plastic or waterproof material to protect the client and their clothing.
Step-by-step explanation:
The type of capes that are used for shampooing, wet haircutting, wet styling, and chemical services are made of plastic or waterproof material. Capes made of rubber or cloth are not generally used for these purposes as they do not provide adequate protection against water or chemicals. The primary function of these capes is to keep the client dry and protect their clothing during salon services that involve liquid products.