ADA - All Youth Guide

Youth Compression Tops 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

Youth Compression Bottoms size guide showing recommended sizes based on height and weight
Size	Height	Weight
size Small	Height for size Small, 120 to 140 centimeters or 3 feet 11 to 4 feet 7	Weight for size Small, 20 to 30 kilograms or 44 to 66 pounds
size Medium	Height for size Medium, 130 to 150 centimeters or 4 feet 3 to 4 feet 11	Weight for size Medium, 30 to 40 kilograms or 66 to 88 pounds
size Large	Height for size Large, 140 to 160 centimeters or 4 feet 7 to 5 feet 3	Weight for size Large, 40 to 50 kilograms or 88 to 110 pounds
size Extra Large	Height for size Extra Large, 150 to 160 centimeters or 4 feet 11 to 5 feet 3	Weight for size Extra Large, 50 to 60 kilograms or 110 to 132 pounds

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

Youth wetsuit size guide showing body measurements for each size with indicative age
Measurement	size Small, age 8	size Medium, age 10	size Large, age 12
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 80 centimeters or 29.5 to 31.5 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