The ICE Retro Fit Kit panels from BODY ARMOR VENT feature patent-pending evaporation and ventilation EVAP Technology. Increase the surface area exposed to evaporative airflow. Above all, the technology produces continuous air flow between the torso and body armor. The channels and holes designed into the panels move air through the backside of the armor. Airflow is created not only by hot air raising, but also your own breathing. Altogether these actions cause cooler air to be drawn in under the body armor. As a result, this produces evaporative cooling. This is a similar idea to how an A/C works, because if air is moving over moisture them it is producing a cooling effect!
BODY ARMOR VENT’s proprietary foam filled, vertical air channels force air flow upwards and out. It is through the horizontal vent holes that enable true evaporation of sweat from behind armor. As a result, this keeps your body’s temperature down in the summer and your body much drier and warmer in the winter. The ICE panels help reduce rashes, excessive odor buildup by keeping fresh air and fresh sweat moving behind your body armor and not letting it sit and ferment.