Wilson GST Autograph Composite Football - Official Size, Brown/White Sewn Stripe: Patented sewn-on stripes are composite material instead of paint and provide 82% more grip to aid release for more accurate throws. Accurate Control Lacing: Patented Accurate Control Lacing (ACL) is pebbled instead of smooth and provides more grip in all conditions. Autograph Cover: Clean white surface to serve as a blank canvas ready for autographs from all of your sports heroes.