The women’s Cool-Lite Rush Vest from Icebreaker is a weather-resistant outer layer designed for outdoor activities like biking, trail running, and training in gusty conditions. It has a light and durable nylon outer shell with a DWR finish that blocks the wind and light moisture. The interior is constructed with a Cool-Lite™ eyelet mesh lining, which features corespun fibers that are nylon threads wrapped in merino wool. This design aids moisture transfer, rests softly against the skin, and wicks away moisture. Laser-cut airholes placed in strategic locations improve airflow and offset shoulder seams help eliminate chafing when wearing a backpack.