Joma Boy's Combi Training Long Trousers 100% Polyester Interlock Waist Size (inch); 4 Years: 21-22, 6 Years: 22-23, 8 Years: 23-24, 10 Years: 24-25, 12 Years: 25-27, 14 Years: 27-28 Slim Fit That Enhances Flexibility And Athletic Output Provides Enhanced Flexibility And Mobility For Better Freedom Of Movement Elasticated Drawstring Waist To Optimise Comfort, Fit And Increased Comfort Whilst Moving Zipped Bottoms For Ultimate Comfort And Fit