Arena is women's loose-fitting jacket with a highly functional, wind and water resistant QuatroFLEX Extreme 20/40 membrane that can withstand even the harshest natural conditions. The tightly woven material provides wind resistance, yet is breathable and lightweight. The jacket weighs approximately 450g and is easy to pack into a backpack. It has two-way taped ventilation zips in the underarms for ventilation, and the taped seams are waterproof. It also has an anatomically cut hood and an extended back. The Arena jacket is ideal as an insulating layer for skitouring and other winter outdoor activities.