Which of the following types of clothing are NOT required to be marked?

Undergarments are not required to be marked because they are typically not visible and do not serve the same purpose as outer layers of clothing, which are more likely to be used in public or operational settings where identification is necessary. Marking is essential for uniforms, outerwear, and footwear as these items are more prominent and can easily be lost or mixed up in group situations. Proper marking helps streamline identification and prevents items from being misplaced among personnel. Therefore, undergarments, being private clothing that does not contribute to operational identity, do not need to adhere to the same marking standards as other types of clothing.