In the big airport battle in Captain America: Civil War, when Falcon uses Redwing (his drone) to knock Iron Man out of the sky, there's a brief shot of what appears to be some sort of net flying off from the point of impact.
As seen here: Falcon (top left), Iron Man's feet (bottom right), Redwing (bottom center), the net (top center).
It definitely looks like a net. It's square, rather than circular like Spider-Man's webs, and it appears to be weighted around the outer edge. But no one in the cast has ever been seen using a weighted net in their fighting, as far as I remember. So what is this net, and why is it going flying off when Redwing hits Iron Man?