800 × 800
Source:https://www.ebay.com/itm/354421628941
400 × 400
Source:https://www.ebay.com/itm/254218219728
480 × 317
Source:https://www.thestiffcollar.com/blogs/the-collar-speaks/types-of-collarless-shirts-how-to-wear-one
2134 × 1600
Source:https://cheegs.com/products/collarfree-future-long-sleeve
1000 × 1600
Source:https://www.ties.com/blog/style-tip-collarless-shirts
2134 × 1600
Source:https://cheegs.com/en-gb/products/wh-collarfree-future-long-sleeve
683 × 1024
Source:https://cheegs.com/blogs/blog/how-to-pull-off-the-collarless-dress-shirt-suit-look
1333 × 1000
Source:https://thespotav.com/products/faherty-womens-dream-cotton-collarless-shirt
2250 × 1500
Source:https://www.theploumanach.com/products/collarless-shirt-in-hibiscus-print-linen
951 × 634
Source:https://www.wsj.com/articles/why-a-collarless-shirt-is-the-look-of-the-summer-1432832185