Armada's Amphibian Down Jacket, part of the Thermic Series, are focused on one thing: warmth. Proven to standup to the coldest, dampest winter environments and paired with Armada's custom MegaRex fabrics to promote breathability, the Amphibian Down turns the mountain's coldest days into the warmest. MegaRex, a two-layer fabric with a waterproof/breathable laminate coating plus a DWR finish, is extremely durable and delivers excellent weatherproofing. And new for the 2011 line, the Amphibian Down jacket has been constructed with a technique to deliver complete waterproofing with 100% taped seams. With this specialized construction, the down insulation is allowed to do it's job right, even in the wettest conditions, guaranteeing you stay warm.