Body Armor Vent ICE Retro Fit Kit Size Small (8x10)BODY ARMOR VENT’s I.C.E. Retro Fit Kit, available in five sizes, is designed to fit all concealable vests and plate carriers.The I.C.E. Retro Fit Kit panels feature our patent-pending evaporation and ventilation EVAP Technology: EVAP is the continuous air flow between your torso and your body armor. Air flow around and through the panel is driven by the hot air expanding and your own breathing provides the air flow which equals evaporative cooling. Air moving over moisture, just like an AC!BODY ARMOR VENT’s proprietary foam filled, vertical air channels force air flow upwards and also through horizontal vent holes to enable true evaporation of sweat from behind armor for the first time in history. This keeps your body’s temperature down in the summer and your body much drier and warmer in the winter.