Dye i4 Mask Thermal (Camo)Camo Dye i4 Full Face Airsoft Mask At the pinnacle of Dye Precision's goggle engineering, the i4 system is designed with precision to enhance your airsoft experience. The i4 goggle system is one of the smallest and lightest full masks on the market, ideal for airsofters who prefer lightweight kit for comfort during extended wear and offers a wide field of vision. The thermal lens offers industry leading optical clarity and provides a consistent,