HIGH-STRETCH SUPPORT. The Nike Pro Tights feature Dri-FIT technology and mesh on the sides help keep you cool and dry. Wear them as a base layer or your only layer for your next challenge. Stay Dry Nike Pro fabric with Dri-FIT technology helps you feel locked in, comfortable and cool. Stay Cool and Comfortable Stretchy fabric lets you move freely and comfortably, and mesh on the sides give you breathability. Durable Design Knees are reinforced to give you an extra layer of durability while you train. Product Details Tight fit for a body-hugging feel Body: 90% polyester/10% spandex. Overlays: 84% polyester/16% spandex. Panel/center front lining: 89% polyester/11% spandex. Machine wash Imported