The item in the image is a Jackie Robinson #42 Brooklyn Dodgers alternate light blue jersey, which features throwback designs honoring baseball history.
The jersey features the name ROBINSON and number 42 on the back, the number universally retired across all of Major League Baseball in his honor. This jersey is a Brooklyn Dodgers baseball jersey, a replica throwback design. This light blue color was an alternate jersey used by the Dodgers franchise to honor their time in Brooklyn.
Brooklyn Dodgers (now the Los Angeles Dodgers franchise).
Color: The jersey is a light blue or "powder blue" color, a historical alternate from the 1940s that was initially made of satin fabric for better visibility during night games.
It features the "Brooklyn" script across the chest in white with a tail, mimicking the authentic look of a historic uniform. This jersey in the replica version made of a breathable, double-knit mesh fabric.