PETMAN is an anthropomorphic robot developed by Boston Dynamics for testing special clothing used by the US Army. PETMAN balances itself as it walks, squats and does simple calisthenics. PETMAN simulates human physiology by controlling temperature, humidity and sweating inside the clothing to provide realistic test conditions. PETMAN development is lead by Boston Dynamics, working in partnership with Measurement Technologies Northwest, Oak Ridge National Lab and MRI Global. The work is being done for the US Army PD-CCAT-TI.