’20’s were a bit boring for blokes, tbh, post war austerity and all that.
Short back and sides, Brylcream, nice suit with narrowish lapels, single breasted for the UK, pegged or flat front narrow trousers, waistcoat and a fob watch, good all leather shoes.
Have some pictures of my dad as a young blade in the 20’s – tank top, cotton shirt, slightly wider trews, brouge type shoes.
Boaters a bit old fashioned, flat cap ftw.
My neice is really into this kind of thing.
Much more fun if you go 1890’s to 1910’s.
Just pretend you’re going as someone really unfashionable.