Wearing armor is not comfortable. Even the most comfortable and breathable plate carrier in not really all that comfortable and it will make it harder for your body to shed heat. The CTAV (Cooling and Trauma Attenuating Vest) from CORTAC seeks to makes armor just a bit more tolerable.
The CTAV is a set of panels that can be affixed to the interior of any armor carrier, between you and the carrier. CORTAC claims that system increases airflow, cooling, comfort, and provides additional blunt trauma protection. According to CORTAC, the CTAV can reduce the surface temperature of your armor carrier by as much as 9.1 degrees. Comfort is further enhanced by the wicking and quick evaporating properties of the CTAV.
The CTAV certainly sounds good on paper, especially if you tend to run hot like I do. Check out the CTAV at CORTAC.