Age 5-6yrs : Chest 24" (61cm) to 26.5" (67cm) Age 7-9yrs : Chest 26.5" (67cm) to 31.5" (80cm) Age 10-12yrs : Chest 31.5" (80cm) to 35" (89cm) Team style technical cycling jersey for the young enthusiast. Breathable, quick-drying fabric. 3 rear pockets. Ideal for on and off-road cycling. 100% Polyester.