Go to the library and wear Throwback customized baseball jerseys

Wearing a Throwback custom baseball jersey at the library is a relatively personalized and non-traditional choice, but whether such attire is appropriate mainly depends on several factors:

The dress code of the library: Firstly, you need to understand and comply with the dress code of the library. Although most libraries may not have strict dress codes, some formal or academic libraries may prefer to require visitors to dress appropriately and neatly. If your Throwback custom baseball jersey looks clean, neat, and without overly exaggerated or distracting patterns, then it may not be considered inappropriate.

Occasions and Activities: Consider the purpose of your visit to the library and the upcoming activities you will be participating in. If you are only going to read, study, or attend some informal lectures, wearing a baseball jersey may not be a big deal. However, if you plan to attend formal events such as academic seminars, interviews, or formal lectures, traditional business casual or academic attire may be more appropriate.
Personal style and comfort: Ultimately, your dressing choices should also reflect your personal style and comfort. If you think wearing a custom Throwback baseball jersey can make you feel more comfortable and relaxed in the library, then that's not impossible. But please ensure that your attire does not interfere with other readers or staff, nor does it disrupt the overall atmosphere of the library.

Social acceptance: Although personal style is important, you also need to consider society's acceptance of this type of clothing. In some cultures, wearing sportswear or casual attire in formal occasions may be seen as disrespectful or lacking professional competence. Therefore, it is best to understand the local cultural customs and social expectations before making a decision.
In summary, there is no absolute answer to whether it is appropriate to wear a Throwback customized baseball jersey at the library. It depends on multiple factors such as the library's dress code, your personal goals, personal style, and social acceptance. Before making a decision, please carefully consider these factors to ensure that your attire complies with regulations and makes you feel comfortable and at ease in the library.