7-8 years, 28" CME Child Medium: Chest - 24” - 28” (61-71 cm) Waist - 20” - 22” (50-55 cm) Torso - 40” - 44” (102-112 cm) 10-11 years, 32" AXS Adult Extra Small: Chest - 28” - 32” (71-81 cm) Waist - 24” - 26” (60-65 cm) Torso - 46” - 48” (117-127 cm)