The Border Union Cattle Show Premium Tartan Kilt isn't a specific kilt you can buy, but rather the tartan pattern itself designed for the Border Union Cattle Show. Here's a breakdown of what we know about the tartan:

• Designed in 1994 for the Border Union Cattle Show
• Sponsored by James Cockburn, a butcher from Galashiels, Scotland
• Categorized as a corporate tartan
• Made from pure new wool 

There's no information available on the specific colors or design of the tartan. However, you might be able to find an image of it by searching online for "Border Union Cattle Show tartan".

Here are some additional points to consider:

• Since it's a corporate tartan, it might not be widely available for purchase as a kilt.
• Kiltmakers might offer customization options where you can choose the tartan fabric. If you find a kiltmaker that offers the Border Union Cattle Show tartan, they likely would be able to create a kilt for you using this tartan.