Sideline energy belongs in the stands, too. This San Francisco 49ers Sideline Lightweight Long Sleeve Hooded Dri-fit Top by Nike delivers to fans the same sweat-wicking technology worn around the field. Pique fabric crafted in a modern, everyday silhouette feels lightweight and features a breathable perforated back neck tape. With removable sleeves, this San Francisco 49ers top allows you to keep pace through the long Nfl season.