The construction of the XKG Down Transition Pant exemplifies the performance qualities of the XKG Series and sets a new standard for lightweight and packable layering. Built with 135 grams of 650 fill waterproof down, this pant has the best warmth to weight ratio of anything in the XKG line-up. This pant easily fits over any mid-layer piece and can be worn under shell pieces for when conditions are at their toughest.