Wearable antenna is becoming a popular study in antenna technology. This paper presents a dual band wearable antenna for on body application. Since a wearable antenna is designed to be incorporated on human torso, this paper has been focusing on the performance of a dual band wearable textile antenna under bending conditions at both E-plane and H-plane. The reflection coefficient and radiation pattern of the antenna are investigated at dual WLAN band; 2.4 GHz and 5.2 GHz. In this paper, the bending effect on the microstrip patch antenna design is simulated in CST Microwave Software at the conditions of flat and bended with radius of 50 mm, 150 mm and 300 mm. The bending effect is most likely to be seen at smaller bending radius of E-plane propagation where the resonant frequency of the antenna shifted downwards. The radiation pattern of the antenna shows almost similar performance with the flat patch antenna condition especially at large bending radius. Therefore, this wearable textile antenna is suitable to be placed on body under bending condition and most effective at 300 mm bending radii.