Measure circumference of thigh 4.5" above the knee. Size Thigh Circumference Approx. Age Child SM/MD 7" to 9.5" (17.7 to 24cm) 1.5 to 2.5 years Child LG/XL 9" to 11.5" (22.8 to 29cm) 3 to 4 years * Because the same age children have different size legs, we strongly recommend sizing by thigh circumference, not age.
Measure circumference of thigh 4.5" above the knee. Size Thigh Circumference Approx. Age Child SM/MD 7" to 9.5" (17.7 to 24cm) 1.5 to 2.5 years Child LG/XL 9" to 11.5" (22.8 to 29cm) 3 to 4 years * Because the same age children have different size legs, we strongly recommend sizing by thigh circumference, not age.