Gel insole: 1.CE,ISO13485,Reach Report 2.relax and gently ... 3.OEM service 4.high quality-price ratio Gel insole: Applications: the cool gel slipper help stimulate boold circulation,can relax and ... feet during jogging,standing,and exercise,these soft soothing liquid gel filled are designed to fit any types of shoe,boots ... hot water approx 80-90 degree celsius for around 3minute gel insole for foot massage