SIGNATURE COMFORT AND STYLE. Sporting Nike's Essential Tight Block design, the Nike Sportswear Swoosh Leggings deliver a comfortable, familiar feel perfect for everyday wear. Soft and supportive, the jersey fabric moves with you for a distraction-free fit. The Nike Essential Tight Block is perfect for everyday wear, this high-rise design is intended to sit at your belly button for added support and comfort. Jersey Fabric: Soft and stretchy, this smooth jersey fabric moves with you. Swoosh By Design: A rubberised printed Swoosh on the left leg provides a signature Nike look. Tight fit for a body-hugging feel.