RACING READY. Be ready to race in the Nike AeroSwift Shorts. A stretchy blend of nylon and spandex pairs with side vents for flexibility and freedom. Sweat-wicking fabric and zoned mesh help keep you dry and cool in the heat of competition. Lightweight Performance Nike AeroSwift technology combines innovative features and materials with precision fit to deliver exceptional mobility and lightweight comfort to help you at your fastest from start to finish. Sweat-wicking fabric helps you stay dry, comfortable and focused. Ventilation and Stretch Zoned mesh fabric on the back liner provides breathability. Blend of nylon and spandex fabrics gives you stretch. More Details Standard fit for a relaxed, easy feel Reflective details Low-profile, elastic waistband with an adjustable drawcord Body: 64% nylon/36% spandex. Waistband: 89% recycled polyester/11% spandex. Lining: 88% polyester/12% spandex. Mesh lining: 81% nylon/19% spandex. Machine wash Imported Not intended for use as Personal Protective Equipment (PPE)