When evaluating Zebra Blind Fabric (also known as Day and Night or Rainbow blinds), you must prioritize material composition, typically a blend of 100% Polyester for durability. Pay close attention to the fabric weight (GSM), which usually ranges from 110g to 200g/sqm; higher GSM often indicates better quality and longevity. Additionally, verify the color fastness to light (Grade 4-5) to ensure the fabric does not fade under intense sunlight, and check the flatness of the mesh and solid stripes to prevent curling at the edges.