At 133gsm, the advanced two-layer Matrix softshell is the lightest double-weave stretch fabric we use. It comprises a tightly woven exterior for excellent abrasion resistance and weather protection. In tandem with the lofted internal layer, that helps wick the moisture away from your skin, keeping you comfortable when working hard on exposed rock. Built for lightweight mountaineering, summer climbing and long, hot multi-pitch routes, the diamond gusset makes best possible use of the fabrics inherent stretch.