An average worsted wool kilt weighs around six pounds.
The most popular tartans are the Stewart tartans, Black Watch, Dress Gordon and the Flower of Scotland.
The oldest tartan is the Falkirk tartan, which dates to around AD245 and was discovered in a jar of coins near Falkirk.
The first named clan tartan was Murray, in 1618.
The first tartan on the Moon was the Macbean, worn by Alan Bean on Apollo 12 in November, 1969