Do you know a great compact folding frame for diffusing sun

I'm traveling in a van, filming an interview for the doctor. Sometimes I shoot outside and would like the frame and material to diffuse the sun a bit. I'd like something about a 3'x3' that folds compactly as the space is carefully used. And since it's just me, I appreciate something that's quick to set up. I have with me one regular stand and two sandbags to help in any wind. Does anyone have a product they like?
Thanks!