Morning dress is the daytime formal

Formal wear

Formal wear and formal dress are the general terms for clothing suitable for formal social events, such as a wedding, formal garden party or dinner, débutante cotillion, dance, or race...

 dress code

Dress code (Western)

A dress code is a set of rules governing what garments may be worn together and in what setting. Examples of dress codes are combinations such as "smart casual", or "morning dress". A classification of these codes is normally made for varying levels of formality and times of day...

, consisting chiefly for men of a morning coat, waistcoat

Waistcoat

A waistcoat or vest is a sleeveless upper-body garment worn over a dress shirt and necktie and below a coat as a part of most men's formal wear, and as the third piece of the three-piece male business suit.-Characteristics and use:...

, and striped trousers

Spongebag trousers

Formal trousers are formal trousers, either checked or striped, worn with morning dress and semi-formal daywear. They have a muted design in black, silver and charcoal grey, and are made from heavy wool....

, and an appropriate dress

Dress

A dress is a garment consisting of a skirt with an attached bodice or with a matching bodice giving the effect of a one-piece garment.Dress may also refer to:*Clothing in general*Costume, fancy dress...

 for women. Men may also wear a popular variant where all parts (morning coat, waistcoat and trousers) are the same colour/material, often grey and usually called 'Morning Grey' to distinguish it; this is only properly appropriate to weddings and races, and is known as a morning suit.

Morning dress is now rarely worn as anything other than formal wear, as a form of Civic Dress e.g.