Soldiers deployed in the extreme cold climates of the Canadian Arctic and similar regions of the world realize severe health risks related to prolonged hypothermia, frostbite and respiratory problems, due to extended exposure to freezing temperatures. But current military gear doesn’t have the ability to continuously monitor a person's vital health parameters and adjust to the changing environmental conditions. In response to these issues, the Smart Jacket developed in this project equips medical sensors to enable real-time health monitoring and a GSM module for secure communication in remote areas. It records vital signs, such as body temp, heart rate, movement and calls for emergency alerts if something isn’t right. Moreover, thermo pads integrated to the body allow the control of heat distribution according to the wearer's condition, yielding both safety and operability improvements especially in severe climates. This Smart Jacket bridges gaps in real-time monitoring, environmental adaptation, and reliable communication, and provides a complete solution to enhance soldier health and survival in adverse snowy environments.