A dress shirt can make or break a sharp dinner ensemble, and this expertly-crafted Marcello shirt from John Lewis is sure to set a high standard. Sporting the classic styling of the traditional black tie shirt, this pure cotton piece has a textured-bib front, double cuffs, enamel dress studs, long sleeves and a semi-cutaway collar. Combine it with a black dinner suit and grosgrain silk bow tie to exude finesse at evening soirees.