Built from a lightweight fabric with flexible stretch, and with an inner brief liner, the 2XU 4" Aero Shorts provide plenty of comfort and breathability for the very best performance. Moisture-wicking fabric draws perspiration away from the body and towards the surface where it can evaporate. Knit elasticated waistband. Rear center zip pocket. Scalloped hemlines. Reflective detail on the front. Solid color design. Materials: 100% polyester. Machine wash, dry flat.