Thr gel inside goes from chamber to chamber, gently massage your
feet,improving blood circulation, and relaxes your feet as you stand, walk, jog,
or exercise, help to regulate human bio-magnetic field, balance circulation
system and neural system so as to keep and improve health;  The slipper helps to
cool down the feet temperature, thus reduce sweat. So, much less chance for
germs to grow, and feet smells better!  

Durable,fashionable.Non-leakage seal guarantee for load up to 200 kgs
One size fit all by easilly adjust the velcro
Gel color optional