Purpose : The purpose of this study found change that caused by various form and weight of bag. So we investigated how these things change the shoulder altitude and space between external acoustic pore and lateral malleolus and also plantar pressure. Method : We measured two different way for this study. One was backpack with 5, 10kg and another one was shoulder pack with same weight. Each trial was 10 seconds in duration with static stance posture. With these experiments, we checked space between plantar pressure, shoulder altitude, external acoustic pore and lateral malleolus with EMED system and GPS. We analyzed these results with PASW(SPSS) statistics 18.0. Result : In conclusion, there were no significantly differences in shoulder altitude by weight of pack, but average of plantar pressure and space between external acoustic pore and lateral malleolus was increased.