adidas Performance Confederations Cup Glider Soccer Ball Part of the 2017 FIFA Confederations Cup Collection, this ball is perfect for a beginning or advanced athlete 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 league for size requirements. Ships deflated