Trakker Bivvies, Shelters and Umbrellas are renowned for using their unique aquatexx material in order to produce bivvies such as the Armo MK2 which has more than established itself amongst some of the best bivvys available today. The magic behind this material is its ability to remain stable in heat, cold or damp conditions. This means it will neither contract or expand. In turn this means less stress on seams and zips making the whole constrution more waterproof and durable. The end result is a lightweight fabric which is 40% stronger than standard nylon material meaning Trakker still lead the way in bivvy development.