The Dynafit Cho Oyu Down Jacket represents the ultimate in down insulation technology designed to keep you warm, even when wet. The 750-fill down is treated with Dynafit's water-repellant and anti-bacterial Downtek coating for unprecedented loft and odor-free use while wet, giving you greater freedom of use in damp conditions (which are the norm in the backcountry). In keeping with the advanced nature of the insulation, Dynafit surrounded it with a Pertex Quantum shell for feather-light (no pun intended) but durable and weather-resistant protection. A boxed baffle construction gives the down maximum loft, and a one-hand adjustable hem and hood seal in the warmth. For extra awesomeness, the Cho Oyu Jacket comes in some flashy colors that keep things lighthearted on your backcountry excursion.