The Nike 2-In-1 Tech Pack Running Pants combine serious performance with laid-back versatility. Stretchy outer panels give the coverage of warm-up pants, while the 3/4-length tights underneath are lightweight and breathable for intense mileage. Benefits Include: Sweat-wicking fabric helps you stay dry, comfortable and focused. Multiple pockets securely store essentials, plus the raised alphanumeric code that circles the waistband translates as "Nike." Low-profile waistband lies flat against your skin and has a 2-way drawcord that can be worn on the inside or outside. Tight: 71% polyester / 29% spandex. Overlays: 80% polyester / 20% spandex.