Coated Dyneema 2mm 50m.

The Dyneema® secret
Dyneema® is produced in a patented gel spinning process in which the fibers are drawn, heated, elongated, and cooled. Stretching and spinning leads to molecular alignment, high crystallization, and low density. Dyneema® has extremely long molecular chains that transfer load more effectively to the polymer backbone. So it’s stronger at the same weight or lighter at the same strength than alternatives.
Up to 15 times stronger than steel (weight for weight basis)
Up to 40% stronger than aramids (weight for weight basis)
Floats on water and resistant to moisture, UV, chemicals