Field Armor 3* Vest - Stealth - 2XL/3XL Vented bio-foam and air mesh chassis paired to an articulating injection-molded shell with airflow channels, keeping you cool and comfortable, D3O? Viper chest and back impact protectors provide industry-leading impact absorption, Elastic and hook-and-loop straps help ensure a snug fit over multiple body sizes, Low-profile design fits easily under most jackets