Youth triathlon size guide showing body measurements for each size with indicative age
Measurement size Small, age 8 size Medium, age 10 size Large, age 12 size Extra Large, age 14
Chest Chest for size Small, age 8, 63 to 68 centimeters or 25 to 26.5 inches Chest for size Medium, age 10, 69 to 74 centimeters or 27 to 29 inches Chest for size Large, age 12, 75 to 77 centimeters or 29.5 to 30 inches Chest for size Extra Large, age 14, 79 to 81 centimeters or 31 to 32 inches
Waist Waist for size Small, age 8, 59 to 62 centimeters or 23 to 24.5 inches Waist for size Medium, age 10, 63 to 66 centimeters or 25 to 26 inches Waist for size Large, age 12, 67 to 69 centimeters or 26.5 to 27 inches Waist for size Extra Large, age 14, 70 to 74 centimeters or 27.5 to 29 inches
Height Height for size Small, age 8, 129 to 138 centimeters or 51 to 54.5 inches Height for size Medium, age 10, 139 to 147 centimeters or 55 to 58 inches Height for size Large, age 12, 148 to 155 centimeters or 58.5 to 61 inches Height for size Extra Large, age 14, 156 to 164 centimeters or 61.5 to 64.5 inches