I bought these to hang on my screen porch. They are sheer, just enough to filter the sun a bit. 

I like the Velcro top on these instead of metal grommets that are on others for outdoors as the breeze moves the curtains listening to metal grommets sliding on metal rod would be annoying. 

These feel relatively sturdy, ive clipped heavy weights on bottom with alligator teeth and it has not frayed the fabric. 

They dry fast after rain. I bought white and so far, no discoloration or staining. Theyve made my porch look like a spa, peaceful and relaxing, really glad I got them. I keep them tied back most of the time, only open when I need to filter the sun.