Arc'teryx Sunna Speed Bird Crop Shirt Women'sHigh mileage isnt just your route plan, its what you'll get out of this technical tee. Built for strenuous hikes and hard efforts, the Sunna moves moisture away from the body to keep you cooler in hot conditions. Lightweight, stretchy fabric stays put on steep scrambles and traverses, and the relaxed, cropped fit keeps air flowing when you need it most. Technical features Breathable Lightweight Quick drying Antimicrobial Construction Lightweight