S Size. The belt is fully adjustable and supportive while not being restrictive. It will go un-noticed under clothes and can be worn while working, gardening, playing sports, watching TV etc. It can even be used in bed as a tiny electric blanket!.

Health type sheathed, four side of telescopic material can  tight fit in the thigh, providing a more comfortable to wear, can moderate stretching material, to ease the pain and acceleration thigh muscle  rehabilitation process  , applicable tohome health care protection..