Show your unwavering support for the San Francisco 49ers with this 2025 Sideline 9SEVENTY Adjustable Trucker Hat from New Era. As the official 2025 On-Field cap of the NFL Sideline, this hat is the same style worn by San Francisco 49ers players, coaches and staff. Featuring COOLERA and MICROERA technologies, this cap wicks away sweat and reduces odor, keeping you fresh and focused all day. The team logo patch on the crown proudly displays your team pride for all to see.