260 × 480
Source:https://uspoloassn.com/pages/size-charts
266 × 215
Source:http://www.dresstoachieve.com/menstips.htm
621 × 480
Source:https://www.ebay.com/itm/361588293248
550 × 900
Source:https://www.businessshirtsplus.com.au/mens-shirt-size-guide-van-heusen.php
720 × 1280
Source:https://m.youtube.com/watch?v\u003dhTLfnQN6QD4
1200 × 738
Source:https://www.wilkesandriley.com/products/classic-fit-blue-navy-multi-stripe-spread-collar-supima-cotton-non-iron-broadcloth-dress-shirt-bt
267 × 350
Source:https://www.pinterest.com/pin/seawarstore-shirt-size-conversion-page--516154807268567422/
938 × 960
Source:https://www.macys.com/ce/splash/mens-suit-fit-guide/index
520 × 520
Source:https://toddshelton.com/blog/shirts/how-to-measure-mens-shirts
345 × 460
Source:https://www.wikihow.com/Measure-for-a-Dress-Shirt