The colored stripes on NFL hats are part of the Crucial Catch campaign, which is an initiative by the NFL and the American Cancer Society to raise awareness about cancer and promote early detection and treatment. The campaign features rainbow-colored apparel, including hats, to represent all types of cancer. The NFL-issued Crucial Catch gameday apparel features a multi-colored logo representing all cancers, and proceeds from the sale of this apparel go towards fighting cancer and funding research. The campaign runs from Week 4 to Week 6 of the NFL season. The tie-dye designs on some of the apparel were introduced to promote the Crucial Catch Program initiated by the American Cancer Society. The NFL also introduced a new logo consisting of rainbow colors in 2021 to show support and solidarity with the LGBTQ+ community.