This wind shirt, designed to repel water, is an excellent choice for runs in unpredictable mountain weather. It is fast-drying, extremely lightweight, and breathable, featuring a stretch-knit hood and lower sleeves. The durable water-repellent (DWR) finish is made without using perfluorinated chemicals. Additionally, it can be conveniently packed into its own pocket for easy storage. Patagonia Women's Airshed Pro Pullover - Green | George Fisher