The Nike Pro Leggings are made from sweat-wicking fabric and with mesh across the calves to keep you cool and dry. Soft, stretchy fabric moves with you as you sprint, lunge and stretch. This product is made from at least 50% recycled polyester fibres. Benefits:Nike Dri-FIT technology helps you stay dry, comfortable and focused.A wide, smooth, mid-rise waistband feels supportive around your core.Ventilated mesh panels along the lower-back of the legs create airflow for breathability.