Which of the following uniform combinations is not compliant?

The choice of a form-fitted compression shirt worn on top of a singlet is not compliant because it adds an additional layer to the traditional uniform without being an officially sanctioned part of the wrestling attire. According to NFHS rules, wrestlers are required to wear a singlet that is specifically designed for the sport, and wearing an additional top can interfere with the adherence to uniform guidelines meant to promote uniformity and minimize confusion during competition.

In contrast, a one-piece singlet and shoes comply with the standard wrestling uniform requirements since singlets are the recognized attire for competition. Matching team shorts and top are often acceptable in freestanding events, while compression shorts with a team logo fall within acceptable attire as long as they adhere to specific guidelines, such as being of a particular material and having a proper fit.