Preggers Maternity Tights with Firm Compression Fashionable true gradient compression tights for mommas-to-be. Graduated compression increases circulation, prevents swelling and energizes tired legs and feet, delivering a controlled amount of pressure from the ankle up. Preggers by Therafirm Firm Compression Opaque Tights Feature 20-30 mmhg* of moderate graduated support Support top expands to your growing belly needs and can be folded under or pulled over an active momma's belly for comfort Smooth seams will not dig into your tummy or show under clothes Super soft yarns are breathable and provide shaping support Moisture-wicking provides a comfortable coolness Fashionable design for everyday wear Made 100% in the USA Nylon and Spandex blend Hand wash in lukewarm or cold water with mild detergent. Lay flat to dry. *The mean compression for an average ankle size.