Graham Outdoor made-to-measure curtains use a professional outdoor fabric supplier, Sunbrella. The fabric manufacturer specializes in producing high-quality outdoor fabrics and holds environmental certifications. Their products block 98% of UV rays and save 60% on cooling energy costs. Material: 100% Sunbrella® Acrylic Pattern: Plain Weave, Canvas Texture Light Blocking: 40%-80% Fabric Weight: 265 GSM Size: Made-to-measure (custom width & length)