1. Brand logo: The logo on the collar is a brand logo, which is used to display the brand name, logo or other information. Design can increase brand awareness and recognition, making it easier for people to identify brands. Without logo, there is no brand logo, which is more concise and low-key.

2. Style and design: The logo on the collar can add specific style and design elements to the clothing. Logo can be a brand logo, letters or other patterns, which can be one of the highlights of clothing and add personality and fashion sense to the overall shape. The collar without logo pays more attention to the design and modeling of the collar itself, which is more simple and classic.