The US Military OCP FREE IWOL vest is a flame resistant insulated outer layer designed for use in cold and hazardous environments. It is worn as part of the Fire Resistant Environmental Ensemble FREE system to provide core warmth while maintaining compatibility with body armor and load bearing equipment. 

• Color: OCP
• Material: Flame resistant laminate fabric with fleece lining
• Function: Core insulation and flame resistant protection in intermediate cold weather conditions

Issued to US Army personnel as part of the FREE clothing system.