Start their fandom from day one with this Christian McCaffrey San Francisco 49ers Romper Jersey from Nike. Practical four-snap bottom and two-snap shoulder closures make for quick and easy changes, keeping your little one comfortable through all four quarters. Breathable mesh side inserts and a rib-knit trim deliver a relaxed fit, while the screen-printed San Francisco 49ers graphics and sewn-on NFL patch replicate the authentic on-field look.