1400 × 1400
Source:https://www.hockerty.com/en-us/blog/types-of-shirt-materials
525 × 700
Source:https://www.businessinsider.com/guides/style/the-tie-bar-casual-shirts-review
1000 × 744
Source:https://www.amazon.com/Alimens-Gentle-Shirts-Stretch-Wrinkle-Free/dp/B0BRWD2S51
830 × 736
Source:https://www.pinterest.com/pin/458030224602828851/
1080 × 1440
Source:https://www.suitsexpert.com/blog/how-to-wear-casual-suit/
1118 × 800
Source:https://www.thefashionisto.com/smart-casual-dress-code-men/
591 × 602
Source:https://www.quora.com/Is-a-polo-shirt-acceptable-as-business-casual-attire
800 × 800
Source:https://www.nimble-made.com/blogs/news/smart-casual-dress-code-for-men
1024 × 684
Source:https://www.sainly.com/en-sg/collections/mens-formal-shirt/products/men-office-casual-outfit-navy-blue-with-white-pant-wedding-sainly
800 × 1200
Source:https://www.themanual.com/fashion/remove-sweat-stains-dress-shirts/