That is a medium-width collar with rounded front ends. It will likely be white and worn with a coloured bow. Here are some collar designs or shirt collar variations based on 3 distinctive types of collars in garments. The variations are usually an individual variety or a mixture of 2 https://types-of-sub-collars90010.activoblog.com/27394190/little-known-facts-about-types-of-sub-collars