Officers also wore the type I and II shoes in the field. When serving in a theater of operations, officers were required to purchase two pairs of approved footwear for this purpose. Officers could choose to purchase riding boots, service shoes, or commercial field shoes of approved patterns.
Service shoes were issued with a pair of canvas leggings that were worn over the shoe in the field. Leggings were designed to the keep dirt and debris out of shoes and trousers tucked in. They were held in place by lacing a series of eyelets and hooks on one side and then fastening a buckle and webbing strap that passed over the shank. Leggings were disliked by soldiers because they caused chaffing, were difficult and time consuming to put on, and the laces would often break. The double buckle cuff of the combat service boot was specifically designed to eliminate the inconveniences that the legging presented.