A preview of the Japanese AK457 2L Down Jacket; The 2L Down is even lighter than the global LZ Down(!) We were able to shave more weight by using tighter and lighter fabrics throughout, as well as even higher loft premium down.
A waterproof breathable down jacket goes a bit against conventional wisdom.. everybody knows down loses much of it's insulative value when it gets wet (and being in the coast mountains, I was skeptical), however when combined with a seam sealed breathable Gore shell it performs incredibly well.
