90 Degree By Reflex Womens Power Flex Yoga Pants 87% Nylon/13% Spandex SOLID: 87% Nylon 13% Spandex, HEATHER: 47% Nylon 46% Polyester 7% Spandex, SPACE DYE: 90% Polyester 10% Spandex Perfect for yoga, exercise, fitness, any type of workout, or everyday use. 90 Degree by Reflex Yoga Leggings combine fashion, function and performance. These Power Flex Pants for women are made from the highest quality fabrics designed to remove moisture from your body, providing maximum comfort. Fabric is designed to contour perfectly to your body, giving you a streamlined look.