EclipseKendall Modern Blackout Thermal Rod Pocket Window Curtain for Bedroom or Living Room (1 Panel), 42" W x 84" L, Purple

Q: do i get 1 panel or 2 panels for the price?

Only 1 panel, as stated under "Description". You will need to purchase at least 2 panels for a single window, but adding additional panels will create more sunblock.

Q: Does one order include one or two panels?

1 panel, as stated in the description.

Q: What's the fabric like?

The texture varies. Some are basic, boring weaves and some are more "girly" with squiggle detail thrown in. I don't remember what the material is made of, but the fabric of this particular curtain is not enough to block out light on its own - the foam backing is definitely necessary for that. But I posted in my review that the foam is a con to this product when it comes to washing. You have to be insanely careful. Wash cold with little detergent and with liquid fabric softener. That later tip I learned only after I had shredded 2 different sets :-/