DA PAM 670-1: 6-1. Classification
Quick Answer
The Army Aircrew Combat Uniform (A2CU) in OCP is a daily work, utility, and field uniform for aircrew members. The Fire Resistant Environmental Ensemble (FREE) provides modular, flame-resistant protection for aviators and CVC.
Important
Unit and command policies may be more restrictive than AR 670-1. Always verify with your chain of command for local policies.
Official Source
View DA PAM 670-1, Section 6-1 (Page 27)Full Details
6-1. Classification
a. The Army aircrew combat uniform (A2CU) in the OCP is a daily work, utility, and field uniform for aircrew
members (see figs 6–1 and 6–2).
b. The Fire Resistant Environmental Ensemble (FREE) is designed to be worn with the prescribed duty uniform to
provide aviators and CVC with modular, flame-resistant protection (see paras 6–10 through 6–13).
Related Figures

Figure 6-1: Army aircrew combat uniform with helmet
DA PAM 670-1, Page 29
Figure 6-1 from DA PAM 670-1
View in PDF
Figure 6-2: Army aircrew combat uniform with patrol cap
DA PAM 670-1, Page 30
Figure 6-2 from DA PAM 670-1
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Disclaimer: This information is provided for educational purposes only. AR670.com is not an official U.S. Army resource. Always verify guidance with official publications and your chain of command.