High warmth to weight ratio with Q.Shield DOWN in the Micro Ratio Jacket will retain critical loft and warmth when wet from the inside or out. Body : Hi-Five 30D Rip 100% nylon. Q.Shield DOWN resists heat-robbing moisture and retains maximum loft even when wet. Compresses down and stows in its own pocket for unbeatable packability. Mock-style collar for extra warmth around the neck.