Relaxsan M1190A Soft microfiber open-toe medical compression maternity tights - Class 1 (15-20 mmHg) 75% nylon, 25% elastane Soft microfiber medical compression maternity tights - open toe Class 1 - graduated compression of 15-20 mmHg Ideal to help reduce symptoms of swelling and heaviness of the leg, treat mild varicose veins and venous disorders, and prevent embolism and thrombosis. Long-lasting and opaque graduated compression maternity tights in soft microfiber with comfortable elastic top that moulds to your body as to accommodate the baby during all stages of pregnancy - Reinforced heels and invisible flat seams for maximum comfort and durability. High quality, 100% Made in Italy - For CORRECT SIZING, please refer to the SIZE CHART included with IMAGES.