Eco Vortex - Lightweight, densely woven Eco Vortex 30K/20K laminated outer fabric is a proprietary Airblaster combination that is made with recycled content and outperforms even the coveted Back Door-Tex. The tight structure of the micro dobby weave lends strength and natural water shedding ability, while keeping the finished weight to a mere 152g/m². The measurable performance comes from the advanced backing laminate, which provides unmatched 30,000mm waterproofing and 20,000g/m² breathability.