Lightwave Lightning Dyneema Guylines 4 pack. High-strength guylines good enough for five-season mountaineering. They are UV-resistant and absorb no moisture (so don't freeze up).
Lightwave says:
Our lightest guylines: a set of 4 weighs less than a single standard 3-mm nylon guyline! Lightning guylines consist of a Dyneema core wrapped in a polyester sheath, which combine to give a total diameter of 1.5 mm and a breaking strain of 110 kg. Each line comes with a mini-Linelok cleat for easy adjustment. These are standard issue with our hyper and ultra tent ranges.
Strong and light! Could wax lyrical about how strong Dyneema is but you probably know that already.
