"slim cut" is correct and usable in written English.
One example sentence using the phrase might be, "I found a great slim cut suit for an upcoming event."
The voice-over says, "Slim cut, Oxford sport coat.
The principles, such as they are, are straightforward: slim cut, mild indulgence, no frills, timeless.
Slim cut wool coats, velvet blazers, herringbone trenches, pin stripe suits - all were on parade.
The silhouette has been updated with an extra-narrow shawl collar and a slim cut.
Styled under signature Raf knitwear with slim cut black trousers and socks with pool sliders.
It's a shame, because done right – subtle patterns, slim cut – plaid suits can look good.
Almost all are the same sort-of-slim cut, available in a range of fabrics (in worsted wool, $425 for the jacket, $225 for the pants).
He was in a dark, slim-cut suit.
▲ I'll wear mine over slim-cut white trews.
He's wearing a slim-cut navy suit that's almost shiny.
He had on a slim-cut Gucci suit and clutched a highball glass full of whiskey.
