Golberg Premium Polyester Accessory Cord – USA Made Smooth Braid Minimal Stretch Rope – Sizes of 3mm, 4mm, 5mm, or 6mm – Lengths of 25, 50, 100, 250, and 1000 Feet – Compact and Lightweight Cord

I believe a bowline knot and polyester accessory cord, but it’s been a couple years since I bought it so can’t quite remember. The cord is nice because you can burn the ends to keep it from fraying, rather than having to cap it off somehow. I think it was this stuff: https://a.co/d/0doFjzBQ