900 × 1200
Source:https://manofmany.com/fashion/mens-fashion-advice/difference-between-formal-and-semi-formal-dress-code
824 × 1080
Source:https://www.reddit.com/r/Weddingattireapproval/comments/16dj5r6/dress_code_says_formal_attire_preferred/
600 × 900
Source:https://bridebox.com/blog/formal-wedding-attire/
568 × 400
Source:https://www.greenvelope.com/blog/common-uncommon-wedding-dress-codes-explained
980 × 1130
Source:https://www.suitsexpert.com/blog/formal-attire-men/
750 × 750
Source:https://www.businessinsider.com/what-to-wear-for-every-dress-code-2016-8
900 × 750
Source:https://www.nordstrom.com/browse/content/blog/wedding-dress-codes
1600 × 1200
Source:https://www.marthastewart.com/7871616/wedding-guest-attire
658 × 1024
Source:https://rtrshift.com/what-is-formal-attire/
700 × 1024
Source:https://www.realmenrealstyle.com/guide-dress-codes-men/