I don't always do sound effects, but those were too good to resist.

I can only speculate what she just did.
Perhaps she spun a fine silk mesh, caked with a form of mucus or resin that solidifies and binds with the silk as it dries. Folks can keep their sweet ass carbon fiber polymer sports cars. I want a Yamame slime-silk one!

I'm just imagining she's been taking lessons from Yuyuko.