Malay R.A.F. Regiment Walking-out Dress has A Sarong!. A picturesque feature of this walking out dress, which has been approved for the Royal Air Force Regiment, Malaya, is the sarong of light blue interwoven cloth, with a vertical panel, worn to the rear, in the Royal Air Force colours of maroon, light blur and dark blue. The sarong, 36 inches deep, is worn form the waist to a little below the knees over white poplin long trousers made in the Malay style. The walking-out dress is completed by a white poplin shirt in Malay style and a blue-black Malay cap, known as a songkok, on the front of which is worn the Royal Air Force airman's badge. November 27, 1950.