Traditionally people tend to keep warm by layering their clothing, the WiT (Warmth in Transition, winter survival gear) helps reduce the amount of clothing a person wears while increasing the amount of time they are able to endure extreme cold temperatures. The WiT is designed to keep people warm by using Rapid Thermal Exchange Technology; it heats the core of the body from the inside out. The WiT warms the blood that flows to the heart and the heart in tern circulates the warmed blood to the rest of the body. What separates the WiT from the current products on the market is its mobile. The current methods do not allow you to conveniently use the device in a mobile setting and they also restrict the users range of motion, where as the WiT is ergonomically designed to fit comfortably without minimal restrictions.