Product details:

The Mountain Hardwear Micro Ratio Down Jacket is a low-profile down jacket with an outstanding warmth-to-weight ratio. The Micro Ratio Down Jacket is fortified with Q.Shield DOWN 650-fill insulation, which retains critical loft and warmth even when wet, so you stay balmy without the bulk. Despite its big-jacket warmth, this compressible wonder is designed so efficiently that it stows away in its own pocket for packing.