adidas Performance 2014 MLS Glider Soccer Ball, White/Glow Orange/Vivid Berry, 3 Part of the MLS Soccer collection, the design is inspired by the three MLS pillars of club, country, and community Machine stitched construction and internal nylon wound carcass for maximum durability and long-lasting performance Special TPU exterior material is designed to resist abrasion and last longer Butyl bladder for best air retention to keep the ball's shape and stay inflated longer 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+. Size 1 is a mini ball. Check with your local league for size requirements. 2014 MLS Soccer Ball Collection Machined-stitched construction ensures soft touch and high durability Butyl bladder for best air retention to stay inflated longer 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