The aim of the present work is to make use of the human biomechanical energy to harvest ESC generated from the contact and separation as well sliding of the fabrics of the cloths with each other. The generated ESC can be used as power supply for the personal medical sensors like thermometers, electrocardiograph, wearable watches and wireless radio-frequency communication system used in condition monitoring of the health of people.  In the present study, the behavior of electrostatic charge (ESC) generated from sliding of high density polyethylene (HDPE) on polyester fabrics is investigated. In addition, the coefficient of friction is studied. The relation between coefficient of fraction and electrostatic charge is discussed.
 
The experiments revealed that as the weave size and the thickness of the strings increased friction coefficient and ESC decreased. This can be attributed to the fact that the number of fibers in contact with the counterface increased as the weave size and thickness of the strings decreased. This observation can be recommended for the manufacturer of the fabrics to control the strength of ESC of fabrics.