When is it appropriate to wear a backpack with military uniforms?

Wearing a backpack with military uniforms is generally permitted in specific situations, particularly when in Navy Working Uniforms (NWU) or Navy Service Uniforms (NSU). The correct choice highlights that when carrying a backpack in these uniforms, it is essential to do so properly—meaning it should not have any protrusions that could be considered unprofessional or distracting. This guideline ensures that service members maintain a polished and respectful appearance while still being practical about carrying necessary items.

The allowance of backpacks during physical training is more restrictive and doesn't cover other uniform situations. The option that suggests wearing a backpack only when off base implies that it would not be appropriate while in other scenarios, which does not align with the regulations allowing backpacks in specific uniforms under the right conditions. Finally, stating that one should always wear a backpack in uniform is impractical and not reflective of the regulations, which specify appropriate circumstances for its use.