Details & Specs Nike Junior All-Field 4.0 Football. This kid-size football is designed for little hands and is made of durable composite leather. The textured laces help improve your grip, and the engineered shape helps you throw a tight spiral. Features and Benefits Composite leather construction is a durable blend of 80% rubber, 17% synthetic leather and 3% polyester Textured laces help improve your grip Engineered shape helps produce tight spirals