Kids' Nike NBA Junior Team 31 Courtside Long Sleeve T-Shirt The Nike NBA Junior Team 31 Courtside T-Shirt is made from soft, comfortable cotton. It is made in a loose cut that does not restrict movement and gives a sense of space with long sleeves and a round neckline. Bold lettering adorns the back and chest, honoring the 75th anniversary of the NBA season.Material: 100% cotton