(See the 4th image for the size chart) These maternity compression medical stockings are made of premium quality, Grade Microfiber Material, breathable & durable compression fabric made of Nylon , Spandex . True graduated compression of 20 - 30 mmHg. Anti- fatigue, Sweat-Absorbent, Anti-Foul, Anti-Slip, Breathable, Eco-Friendly. The socks will be a tight fit when first worn, it"s normal.^By improving blood flowing & circulation, Maternity Compression Socks may help to prevent the ankle, leg, and foot from swelling, which is usually associated with pregnancy. The thigh high compression stockings also reduce muscle cramping while re-energizing tired legs, suitable for people who often stand or maintain a long posture time.^They may also help reduce the risk of developing varicose veins, so you can stay looking and feeling good Body slimming Stovepipe^If conditions permit, we strongly recommended purchasing 2 pairs for the same product to replace them, as this will double its life for each pair. and the best washing time is two days, no more than three days, because a long time wearing will affect the recovery of elastic socks. We Guarantee the Socks Will Last Dozens Of Washes While Maintaining The Same Level Of Muscle Compression Treatment & Effectiveness.^Buy without any risk Customer satisfaction is our highest pursuit. If you have any questions or suggestions about our medical stockings, please contact us via Email, and we will do our best to give you a satisfactory answer as soon as possible.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don& 39;& 39;& 39;& 39;t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it "