From Longman Dictionary of Contemporary Englishkit bagkit bag, kitbag /ˈkɪtbæɡ/ noun [countable] especially British English PMa long narrow bag used by soldiers, sailors etc for carrying their clothes and other possessions
Examples from the Corpus
kit bag• He came on wearing a sailor's hat, a greatcoat and a kit bag.• Patrick opened the wardrobe and pulled out an old army kit bag.• A kind letter from the commanding officer, his kit bag.• Sponges and towels are not part of the judicial kit bag.• As you cross the line, make your way to the lorries containing your kit bag. 