Size Chart - Kid's Thermal Henley All measurements are in c.m. SIZE ARM LENGTH BODY LENGTH WIDTH 6-12M 22 32 23.5 12-18M 22.5 34 25 18-24M 24 37 26.5 2T 26 38 28 3T 27.5 41 29 4T 29.5 43 31 5T 32.5 44.5 32