Fit & Sizing Guide
Baby Clothes Size Guide
Babies grow rapidly in their first year. Our garments are thoughtfully tailored with gentle stretch, expandable envelope necklines, and adjustable cuffs to ensure a cozy, long-lasting fit.
Standard Sizing & Growth Chart
| REXBEBE Size | Recommended Age | Baby Height | Baby Weight |
|---|---|---|---|
| Preemie / Tiny Baby | Up to 5 lbs | Up to 44 cm (17.5 in) | Up to 2.3 kg |
| Newborn (0M) | 0 - 1 Month | 48 - 56 cm (19 - 22 in) | 2.5 - 4.1 kg (5.5 - 9 lbs) |
| 0 - 3 Months | 1 - 3 Months | 56 - 62 cm (22 - 24.5 in) | 4.1 - 5.7 kg (9 - 12.5 lbs) |
| 3 - 6 Months | 3 - 6 Months | 62 - 68 cm (24.5 - 27 in) | 5.7 - 7.5 kg (12.5 - 16.5 lbs) |
| 6 - 9 Months | 6 - 9 Months | 68 - 74 cm (27 - 29 in) | 7.5 - 9.0 kg (16.5 - 20 lbs) |
| 9 - 12 Months | 9 - 12 Months | 74 - 80 cm (29 - 31.5 in) | 9.0 - 11.0 kg (20 - 24 lbs) |
| 12 - 18 Months | 12 - 18 Months | 80 - 86 cm (31.5 - 34 in) | 11.0 - 12.5 kg (24 - 27.5 lbs) |
| 18 - 24 Months | 18 - 24 Months | 86 - 92 cm (34 - 36 in) | 12.5 - 14.0 kg (27.5 - 31 lbs) |
| 2 - 3 Years | 24 - 36 Months | 92 - 98 cm (36 - 38.5 in) | 14.0 - 16.0 kg (31 - 35 lbs) |
1
Height is Key
When in doubt, choose sizing based primarily on your baby's height rather than age alone, as babies grow at individual paces.
2
Size Up for Cashmere
For hand-knit cashmere cardigans and swaddles, choosing one size up gives room for layering over onesies through cooler seasons.
3
Free Size Exchanges
If a gift or outfit doesn't fit your baby comfortably, our concierge offers quick 30-day size swaps with prepaid return labels.
Ready to dress your little one?
Explore our curated newborn rompers, French linen sets, and delicate knitwear.