Quote Originally Posted by Random2389456:
Waist size is 36-38 (not sure exactly)

You said "Marks & Spencer have a line...active waist I think", I don't understand. Please explain.
Sorry for not being more clear...

Marks & Spencer sell Chinos and other trousers that have 'Active Waistband'....it is like an elastic waist but a more clever design.

If you go to the store and ask about 'Active Waistband' trousers they will know what you mean...your size won't be a problem in Hong Kong.