I could do them up... but only just.
This despite eating carefully, walking about 2 hours a day with a heavy rucksack, and feeling fitter and healthier than I've done in years.
Something doesn't add up, says the accountant.
So I tried on just about the tightest-fitting garment I own, the skirt of a bridesmaid's dress... and lo and behold it fitted just fine.
I think the velvet trousers must have shrunk in the wash :-)