Who are the only Soldiers authorized to wear the IPFU shirt outside of the trunks?

The correct answer is that pregnant Soldiers are the only personnel authorized to wear the Army Physical Fitness Uniform (IPFU) shirt outside of the trunks. This policy recognizes the unique needs of pregnant Soldiers, allowing them to maintain comfort and modesty during physical activities. While other groups, such as all Soldiers during physical training, may wear the IPFU as a complete uniform, the specific allowance for pregnant Soldiers to wear the shirt without trunks is designed to accommodate their condition and ensure they can engage in physical fitness activities comfortably and effectively. This provision is aligned with Army regulations that underscore the importance of supporting Soldiers during pregnancy in a manner that respects their needs while maintaining standards of appearance.