KUDOROMen's Suits 3 Piece Regular Fit Skinny Paisley Jacquard Tuxedo Suit for Wedding Casual Business Dinner Party Tuxedo Suit Set

Size 38inch chest and 32waist what size would I need?

Son is 5ft 10 slim build normal jacket size uk would be 38 and in between 30 waist and 32 waist uk size would it be a small required?

I need small for the blazer and waist coat, but large for the trousers? Can i order the small top but large trousers or do i have to compromise?

Can i return if wrong size