Fall is a transitional season, not just for weather but for sizing too. Babies grow quickly in the first year, and fall clothing often overlaps with growth spurts. That makes it one of the most common times parents consider sizing up.
Here’s what to watch for:
- Snug fits around the chest or thighs – If a footie feels tight when zipping or if leg snaps pop open, it’s likely time for the next size.
- Less stretch in movement – Babies should be able to kick, roll and curl their legs freely in their sleepwear and daytime outfits.
- Sleeves riding up – If long sleeves no longer cover the wrist or need adjusting constantly, that’s another signal.
Since fall clothing usually includes long sleeves, footies and hats, a little extra room is better than not enough. Bamboo fabrics, like those used at MA‑MA NYC, help extend wear time thanks to their natural stretch, but even the stretchiest outfits have a limit. If in doubt, size up and layer lighter underneath for now.