What are we wearing for job interviews these days?

[DishesAreDoneMan]

Help!
I have a job interview on Thursday in central London (most definitely not my part of the world)

I haven’t had a job interview in 10 years and even that felt very casual/informal as the company itself is pretty casual and I sort of knew the hiring manager.

the job I’m interviewing for is office manager for a high street fashion buying office.
I am the least fashionable person on earth.
I do the same job currently for a different fashion retailer but the dress code is so casual.
i will have to buy something new for the interview as my current work wardrobe is literally jeans, sweaters/jumpers and either trainers or doc marten boots.
I have one black blazer that I could use and potentially a smart casual top but no suitable shoes or trousers.
I’m a size 14, have a very large tummy (literally look pregnant depending on posture!) and I stay away from dresses as they make me look frumpy.

What would you be expected to actually wear on the job - well-fitted jeans, black jumper (or top with blazer) plus black leather boots sounds smart but in-keeping. Nice accessories.
Level up what you’re comfortable in rather than role play
good luck!

I would say the smartest version of what someone would wear on the job - so what you'd wear on the job for a presentation.

What kind of fashion retailer? Hobbs would be a very different vibe from River Island as would Sweaty Betty.