Model is 4'6" and is wearing a large in kids size.
Size Chart:
Small: Width = 31.1cm x Length = 41.91cm
Medium: Width = 34.29cm x Length = 45.72cm
Large: Width = 39.37cm x Length = 53.97cm
X-Large: Width = 44.45cm x Length = 62.23cm
Material: 95% cotton / 5% spandex