Is the Dunkeld actually waterproof?

Yes. It is made from Mackintosh's bonded cotton, a rubberized fabric the brand built its name on, and it is listed as rain-ready. Seams and the button front are the weak points in sustained heavy rain.

It is midweight. It blocks wind and rain and layers over a sweater or suit, but it has no insulation, so it is a three-season coat rather than a winter one.

No. The Dunkeld is a collared trench with long sleeves and a button front, so you need a hat or umbrella in a downpour.

It is a regular cut in a standard size type, so it sits close to true size and leaves room for a jacket underneath. Those between sizes may prefer the larger one for layering.

How does it compare with a Burberry trench?

Both are tailored trenches, but the Dunkeld uses bonded cotton for true rain protection, while classic Burberry trenches are gabardine, which sheds light rain but soaks through in prolonged wet. The Dunkeld is stiffer and less breathable as a result.

What should I know about care?

Bonded cotton should not be machine washed or tumble dried, since heat and agitation can damage the bonding. Wipe it clean and have it professionally cleaned when needed.