Covering everything from early infancy to toddlerhood, this range is built for the long stretch where a baby moves from lying down to sitting, crawling, and finally walking. Popees' 3–24 month shirt and pant sets adjust fit and fastening style across that span rather than using one design throughout.
Fastenings change as babies grow
At 3 months, front-snap shirts suit babies who are still handled and changed lying down. By 12–24 months, pull-on shirts and elastic pants suit toddlers starting to dress and undress themselves.
Don't buy the full range in one size
Because this collection spans such a wide age range, treat it as several separate purchases across the months rather than stocking up once — sizing needs change too much between 3 and 24 months.
Prioritise washable, colourfast cotton
This age range goes through the most washing of any stage — food mess, spit-up, outdoor play — so colourfast, pre-shrunk cotton holds shape and colour far better than cheaper prints.
Does one size of this set fit the whole 3–24 month range?
No — sizing is broken into sub-ranges within the collection; always check the specific size band on each listing rather than assuming one fits all.
What changes in the design between younger and older sizes?
Younger sizes typically use front-snap or tie fastenings for ease of changing, while older toddler sizes shift to pull-on styles that support self-dressing.
Are these sets suitable for outdoor play once a toddler is walking?
Yes, the pant styles in the older size range are cut with a bit more room at the knee for crawling and early walking.
How often will I need to size up in this range?
Roughly every 2–3 months for the 3–12 month stage, slowing to every 4–6 months once past 12 months as growth rate steadies.
We break this range into sub-sizes deliberately, since a true 3–24 month single size would fit almost no one well.
