Graduated compression hosiery is designed to be tight. The tights will compress most at the ankle, less at the calf, and less again at the thigh, it is this gradual pressure that effectively aids blood flow from the feet and lower legs back up towards the Heart. This action promotes healthy blood circulation and prevents (and/or) relieves leg fatigue, heavy leg syndrome, varicose veins and minor swelling.
the higher the compression level, the tighter the pressure, and therefore, the more difficult it is to get the tights on. . More difficult to get into compared to normal hosiery, but most definitely worth the effort as they make your legs feel energised and in the long run, help keep sexy legs, looking sexier for longer.