RelaxSan standard medical compression maternity tights exert moderate graduated compression at the ankle (15-21 mmHg Â Class 1), with the level of compression gradually decreasing up the garment. These medical compression maternity tights are produced with extremely high-quality yarns and are therefore very durable and soft. The flat seams provide you with maximum comfort, while the comfortable elastic top moulds to your body in order to accommodate the baby during all stages of pregnancy. Finally, the anatomically shaped heels guarantee perfect fit and the correct distribution of compression. Standard size and open toes.