NFHS Competition Soccer Ball Made from high-quality materials to ensure state-of-the-art match ball performance Thermally bonded seamless surface technology, TSBE, for a more predictable trajectory, better touch and lower water uptake Special TPU exterior material is designed to resist abrasion and last longer Butyl bladder for best air retention to stay inflated longer NFHS Certified Ball Size 5 is official size Made from high-quality materials to ensure state-of-the-art match ball performance Thermally bonded seamless surface for a more predictable trajectory, better touch and lower water uptake Butyl bladder for best air retention to stay inflated longer NFHS Certified Ball Size 3 ball suggested for ages 8 and under, Size 4 ball suggested for ages 8-12 Size 5 ball (official size) suggested for ages 12+ Check with your local league for size requirements