In September 1939, just three weeks after the outbreak of war, Gladys Mason wrote briefly in her diary about events in Europe: 'Hitler watched German siege of Warsaw. City in flames.' And, she continued, 'Had my wedding dress fitted. Lovely.'

For Gladys Mason, and for thousands of women throughout the long years of the war, fashion was not simply a distraction, but a necessity - and one they weren't going to give up easily. In the face of bombings, conscription, rationing and ludicrous bureaucracy, they maintained a sense of elegance and style with determination and often astonishing...