Excellent layering pieces, our Z500 1/4 Zips combine sleek and soft with functional trims. Tech layers with incredible mileage, the Z500 Series will carry you from the gym, to the coffee shop, to work, and wherever else the day takes you. Shell Fabric: Double Jersey Polyester/Spandex Stretch Knit 90% Polyester / 10% Spandex Mesh panels at underarm for added breathability Contrast reverse coiled zippers at center front and pocket Zippers live in self fabric pocket garages Interior wind flap One hand drawcord Machine wash and dry