I am reasonably confident that Kate Middleton wears the L.K. Bennett Frieda Cigarette trousers in black.
The Data Duchess counts five public wears of the trousers to date. She suspects Kate debuted the Frieda at the University of Derby engagement in 2020. (She paired the slim-leg trousers with an oversized coat by Massimo Dutti.)
It looks like she wore the black ankle-skimming trousers a handful of times in 2021 too. Here’s Kate wearing them during a visit to Pittenweem in Scotland in the spring.
She recently wore the cigarette-leg trousers in April 2022 during a visit to the headquarters of the Disasters Emergency Committee in London.
It looks like Kate owns the same trousers in midnight blue too:
About the Frieda trousers:
The Frieda trousers are classically tailored with a traditional straight-leg cut. They’re made from black stretch crepe.
Where to buy:
Note: The midnight blue colour, also worn by Kate, is available in all sizes for £62 (was £125).
Kate and L.K. Bennett:
Kate is loyal to L.K. Bennett. I’ve lost count of how many of their items she’s worn over the last decade since joining the Royal Family. Here’s just a small selection: