How to pronounce “vest”(adj) in English

Moving forward to vest pocket books, which for me, remind me of the function that PDA sort of serve for bartenders now.

coat his coat his vest his shirt oh and

in the vest pocket his speech which was folded over a 50-page speech which makes

Moving forward, now we have this genre of books that are sort of vest pocket books that come out together all around

I got to write--speaking of British stuff-- I got to write all the linguistic confusion of these Brits in the United States dealing with, "What do you mean by vest?