If you wear a t-shirt without a jacket, it is more of a casual look
Decorations may also be worn and, unlike Debrett's , Cambridge University's Varsity student newspaper suggests a top hat, opera cloak and silver-topped cane are acceptable accessories
LONDON, ENGLAND - SEPTEMBER 11: Margot Robbie attends the "A Big Bold Beautiful Journey" UK Premiere at the Odeon Luxe Leicester Square on September 11, 2025 in London, England
A dress shirt in a small-scale pattern such as a micro dot or micro stripe will add interest to your suit, especially when you add a contrasting tie and/or pocket square
Oxfords are one of the most formal dress shoes but it does not mean they can only be paired with suits
More Wedding Attire Guides for Men What to Wear to a Wedding for Men the complete guide covering all dress codes Semi-Formal Wedding Attire for Men one level above casual Beach Wedding Groom Attire specific guide for outdoor beach settings Summer Wedding Outfits for Men seasonal guide for warm weather weddings Smart Casual Dress Code for Men the baseline for casual wedding attire Dress Shirts for Weddings the best shirt options for wedding occasions So you just got your friends wedding invitation in the mail and notice that the wedding dress code says not formal wedding attire, but casual wedding attire
