CLASSIC COMFORT. Boost your tights collection with the Nike Sportswear Leg-A-See JDI 7/8 Leggings. Made with stretchy, smooth jersey fabric that lets you move freely, they feature the iconic JUST DO IT. slogan on the leg. Knit fabric is soft and stretchy. High-waisted design offers extra coverage. Just Do It. tagline wraps the left leg for bold graphic style.