RelaxSan standard medical compression hold up stockings 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 hold up stockings are produced with extremely high-quality yarns and are therefore very durable and soft. The flat seams provide you with maximum comfort, while the soft hypoallergenic silicone top bands do not squeeze your thighs and prevent the hold ups from rolling up. Finally, the anatomically shaped heels guarantee perfect fit and the correct distribution of compression. Standard size and open toes.