Moving fast in the mountains or the city on a breezy or drizzly day? This ultralight bio-based wind breaker will do the trick. This wind shell will fit into any tight corner, from your purse to your fanny pack, with a stuff-into-itself design that makes it easy to pack--or clip and grab--when space is slim and every ounce counts. Perfect for summit days or training days when the wind is howling and the skies are (mostly) storm-free. Water- repellent coating helps you stay dry in a pinch, from morning dew to misty alpine afternoons.