From Longman Dictionary of Contemporary Englishshoulder bagˈshoulder bag noun [countable] DCa bag that hangs from your shoulder
Examples from the Corpus
shoulder bag• Luna almost always carried a flat black shoulder bag.• A fringed cotton shoulder bag hung over one shoulder and he was the very image of a hippy or New-Age traveler.• Rain left him supporting himself against a table as she fetched her shoulder bag.• Claire jams the black box into her shoulder bag.• Tied loosely around the strap of her shoulder bag was a navy and yellow scarf. 