Several fashion-related listings describe how people can style football shirts for the World Cup summer. Across the sources, the pieces frame football shirts as a mainstream wardrobe item and present “six new fashion rules” for wearing them, paired with outfit inspiration. The guidance includes suggested pairings such as wearing football shirts with denim shorts and with tailored-style trousers, including barrel-leg poplin trousers. The articles also position the look as suitable for summer wear, with an emphasis on high-street accessibility and pre-tournament shopping. Although the specific wording varies, the shared theme is styling football shirts in combination with summer-friendly bottoms and contemporary silhouettes. The sources focus on outfit ideas and retail-oriented suggestions rather than discussing on-field events, teams, or tournament logistics. Overall, the coverage provides a practical fashion checklist for styling football shirts during the 2026 World Cup summer period, highlighting mix-and-match options intended for everyday wear.