Keep warm as your cheer on your San Francisco 49ers in colder weather with this Men's San Francisco 49ers 2021 Sideline Tech Cuffed Knit Hat. Built with a lightweight lining for climate versatility and bold graphics to show your spirited fandom, this New Era knit is the perfect addition to your game day collection. Look for your favorite San Francisco 49ers players and coaches wearing this gear on the sidelines throughout cooler games this season!