LEGO Ninjago Boys' Masters Of Spinjitzu T-Shirt Front: 100% Polyester Back and Sleeves: 100% Cotton Lego Ninjago TShirt. With a cool design of the top 4 masters of Spinjitzu, your little boy will love this Ninjago Tee. This top comes with an all-over large print on the front and the Lego Ninjago logo stitched on the sleeve. An ideal complement to any young ninjas wardrobe, this cool Ninjago t-shirt is great to wear with jeans or shorts. Officially licensed Lego wear, exclusively designed for Character US.