Put yourself in a position for success with the Nike Spiral-Tech Football. This offers a composite leather cover and a Spiral-Tech design to generate consistent flight and improved accuracy in any weather condition. The high tack finish provides an enhanced grip to make the big plays happen. A full nylon wound butyl body combines with the butyl bladder system to ensure exceptional shape and air retention. Spiral-Tech graphics top it off with an official look. Victory is one one play away with the Nike Spiral-Tech Football. 50% rubber/48% synthetic leather/2% nylon.