The product is a men's athletic sneaker from the Air Jordan 4 Retro line, featuring a size 4 shoe in the color blue with a retro theme. Released in 2021, this model combines elements of black, tech grey, university blue, and white, creating a stylish and unique silhouette. The Jordan 4 Retro Black Tech Grey University Blue White 2021 is a highly sought after shoe for sneaker enthusiasts and collectors alike, showcasing the iconic Air Jordan design and style.