Tummy Pad SMALL: 8" X 3.5" (20 cm X 9 cm).
Tummy Pad MEDIUM: 14"X 3.5" (36 cm X 9 cm).
Tummy Pad LARGE: 18" X 3.5" (46 cm X 9 cm).
Not sure which size to buy? This helpful advice from Lillebaby may help:
If you have a LILLEbaby carrier already, you can help determine the size tummy pad to purchase by placing your carrier around your waist like you would for a back carry and measure how much webbing is showing. Between 8-13", you would need a small, between 14-17" a size medium, and anything more than 18", a large would be recommended. When in doubt, size down as a size small fits everybody!