Material: maternity tights are polyester. They are breathable, comfortable, non-deformable, extremely elastic. Thin lined maternity tights. Pregnancy: 200g Maternity tights with fleece, warm comfortable, suitable for keeping warm in the cold winter. High waist stretchy: the unique seamless pleated design ensures an elastic fit. The high waist design provides effective support for pregnant mothers for the stomach waist, you can feel comfortable relaxed during daily activities. The opaque, breathable maternity leggings are very comfortable, lightweight and offer more freedom of movement, plenty of space for the growing stomach of a pregnant woman. Practicality: pregnancy tights thermal leggings for pregnant women are suitable for early, medium post-pregnancy