The Nike Phenom Elite Pants use a stretchy, lightweight material. The slim design, which tapers towards the ankle, offers a more refined fit than before. This product is made with at least 50% recycled polyester fibers. The improved woven material provides a light feel. The stretchy design supports free movement with every stride. These pants incorporate heat mapping based on runner data to enhance breathability in key areas. Stretchy woven material and a grid face are used on the upper back, the inner leg gusset, and the back of the knee. This ensures excellent breathability at all times. A lined media pocket in the center back is convenient for storing essentials. Side pockets hold small items, and a drop-in pocket on the right side can store keys and cards.