No, I went with the 5/16" steel chain instead of the 3/8"

Those pics were taken in the forest below my house. I hang a big hammock from those trees and those chains are for that.

I did make some tree huggers for the little hammock though, but I'm not sure if mine are nylon or poly either. Since I don't weigh much, they don't stretch much, but I'll probably find out for sure that they're nylon when my butt's dragging on the ground one cold, wet, morning