Its the combination of materials that makes the Mammut Womens Aenergy Light Hybrid Hooded Pullover stand out from the crowd: PolarTec Power Grid ensures excellent moisture management and breathability, PolarTec High Loft fleece offers very high heat performance at low weight. The materials are positioned to work with your body so that they perform where they are needed. Other features include a close-fitting hood that fits well under a helmet, as well as a small chest pocket with zipper where you can store the most important things you need to hand. When things get tough, you can ventilate using the half-length zipper. The Aenergy Light Hoody is a high-performance mid-layer for achieving your technical climbing goals.