Whether you're gearing up for a chilly tailgate or need a technical layer for the gym, the San Francisco 49ers Full Defense Dri-FIT Primary Sweatshirt from Nike is built to perform. Midweight double pique fabric feels substantial yet breathable, while the heat-sealed silicone logo stretches with the material for a finish that won't crack. Raglan sleeves provide a greater range of movement, underarm eyelets add ventilation, and a zippered side pocket secures your valuables. A versatile, performance-driven essential with sun protection for long days supporting the San Francisco 49ers under the open sky.