During exercise in warm environments, the cardiovascular system is challenged to simultaneously provide sufficient blood flow to the working skeletal muscles and to provide sufficient blood flow to the skin to dissipate heat. This leads to the physiological phenomenon of cardiovascular drift, which is defined as the progressive increase in heart rate paired with a decrease in stroke volume, while cardiac output remains constant. This study was designed to explore the impact of layering clothing to induce cardiovascular drift, which indicates the possibility of heat acclimation. Specifically, this study was undertaken to determine if the results of exercise in excess layers match the traditional, well-researched method of exercise in an environmental chamber.