This type of shower curtain is distinguished by its jacquard weave, a specific weaving technique that creates intricate patterns directly into the fabric, rather than printing them on the surface. The term "plain" in this context refers to the absence of a complex, multicolored design, emphasizing a subtle, often monochromatic or textured pattern that adds a touch of sophistication and depth to the fabric. Made from a durable material, often polyester, it's designed to withstand the humid environment of a bathroom.