Baby & Infant Clothes by Age: 0–24 Months

Baby and infant clothes from newborn to 24 months — romper sets, bodysuits, jumpsuits, dresses and pajamas in sizes from 0–3 months up to 18–24 months.

The first two years are the fastest your child will ever grow, and this collection is organized around exactly that. It gathers our full range for babies from birth to 24 months: soft knit romper sets with matching headbands, sleeveless floral strap rompers for hot weather, long-sleeve outfits with pants for cooler months, ruffle three-piece sets, and a few milestone pieces like first-birthday costume sets. Sizes are labeled by age (for example 0–3 months or 18–24 months), and each product page shows our general size guide with heights in cm, so you can check your baby's measured length before you choose. Many of the styles here are coordinated sets rather than single pieces, in colorful, detail-rich styles - ruffles, bows, florals, playful prints - with much of the range designed for girls. That makes this page a strong first stop when you are restocking after a growth spurt: one set covers a complete outfit. If you already know the stage you are shopping for, the newborn and toddler pages linked below narrow things down further.

How to choose

• Check the size guide, not just the month label: each product page shows our general size guide with heights in cm, so compare your baby's measured length against it.
• Count the snaps: for the diaper months, rompers and bodysuits with snap openings make mid-day changes far quicker than over-the-head styles.
• Buy for the season your baby will be that size: a baby hitting 6 months in January needs the long-sleeve sets with pants; sleeveless rompers earn their keep from late spring through summer.
• Favor sets over singles early on: two or three coordinated sets - top, bottom, and headband - mix into more complete outfits than the same number of individual pieces.

FAQ

What size does a 6-month-old baby wear? It depends more on height than age. Check your baby's length in centimeters against the size chart on the listing.

How many outfits do I need in each size? It depends on how often you do laundry; our guide to how many baby clothes you need breaks it down item by item.

Are these styles for boys or girls? Much of this collection is designed for girls - ruffles, florals, and dresses feature heavily - and most product titles say whether a piece is for girls, boys or both, so scan titles to find the styles that fit your child.

Shopping for a 12-month-old or an 18-month-old? Most styles here run up to 18–24 months; from the first birthday on, toddler clothes and outfits gathers the styles that come in sizes from 12 months to 3 years. Shopping for a newborn? Browse newborn clothes for 0-3 months, and read our guide to what baby clothes sizes really mean before you commit to a size.

Not sure which size? Use the baby clothes sizes-by-age guide or the size converter — sizes run different by brand, so see why before you buy.