#1) When did Highland men change from wearing braies to kilts and did all Scottish men change over to kilts at the same time? Braies are loose shorts or trousers common throughout the medieval era. Worn long, they were like loose trousers, worn short and under shirts or tunics, they were basically medieval underwear.Click to see full answer. Then, what did Scots wear under their kilts?It is unknown exactly why the practice of wearing no undergarments under the kilt began, but many sources indicate it originated with the Scottish military uniform in the 18th century, leading to the invention of such expressions as “go regimental” or “military practice” for wearing no underwear.Also Know, what is a Scottish Kirtle? Women wore a long under-gown similar to a slip with sleeves. This was called a kirtle. The term kirtle is sometimes used to refer to an over-garment, perhaps because the sleeves and hem of the kirtle were often very much on display. Also, why was the kilt banned in Scotland? Because the kilt was widely used as a battle uniform, the garment soon acquired a new function—as a symbol of Scottish dissent. So shortly after the Jacobites lost their nearly 60-year-long rebellion at the decisive Battle of Culloden in 1746, England instituted an act that made tartan and kilts illegal.What are Scots famous for?45. Many of Scotland’s most famous inventions – kilts, tartans and bagpipes – were actually developed elsewhere. Kilts originated in Ireland, tartans have been found in Bronze Age central Europe and bagpipes are thought to have come from ancient central Asia.