Filled with high performance 650 fill Berghaus Hydrodown® what continues to insulate even when wet as well as being wrapped in water and wind resistant Pertex® Quantum fabric , which allows the down to fully loft to enhance warmth. The big baffles and insulated hood boost warmth while the oversized fit allows you to layer up for the coldest conditions. This is your go-to jacket for stepping out when the temperature really drops.