Whip the Mountain Hardwear Women's Micro Ratio Down Jacket out of its pocket before you set your lead climber on belay. Its light and lofty down insulation adds warmth to brisk belays, chilly alpine environments, and cold ski resorts. Mountain Hardwear's Q. Shield Down treatment helps the down retain its lofty warmth in wet conditions. Stuff the Micro Ratio Down Jacket back in its pocket and clip it to your harness when it's your turn to climb.