The Campbells are historically a powerful family: During the 16th to 18th Centuries they were one of the leading families in Argyll and Perthshire and they have played important roles within the government of Scotland.
Field Marshall Colin Campbell (1792-1863): "A man in a kilt is a man and a half."
Several tartans are connected with the Campbell clan. However, the Campbell Ancient tartan shown below is not a clan tartan, but a military tartan, also known as Campbell, The 42nd.
The Campbell Ancient tartan has always been one of my favourite ones.
The kilt shown on this page is a 4 yard "economy" kilt, as they were called around 2000. The fabric is fine, but there are only 3 yards of it. I still wear it pretty often.