Size 80 in SHEIN baby clothes usually means about 9 to 12 months old. It’s a general guide, so the best fit still depends on your baby’s height and build.

Quick Scoop

For most SHEIN baby items, size 80 is the same as roughly 80 cm height sizing, and it’s commonly listed around 9–12 months. Some size charts also describe it with measurements around 49–50 cm bust/chest, 49 cm waist, and about 51–52 cm hips , depending on the garment type.

Best way to choose

  • Check the product-specific size chart on the item page, because SHEIN sizing can vary by style.
  • Compare the chart to your baby’s height, weight, and chest rather than age alone.
  • If your baby is between sizes, going one size up is usually the safer choice for comfort and growth room.

Simple rule of thumb

If you’re shopping quickly, think of size 80 = around 9–12 months / 80 cm baby. If you want, I can also help convert size 80 into US, UK, or EU baby sizing.