Mix and match our TOG-rated Rompers, designed to be worn as a Pajama underneath any of our swaddles or sacks for sleep, or on their own as daywear.
Size Guide
Long Sleeve Rompers
Please use your child's weight and length to find the most appropriate and safe size for them. Long Sleeve Rompers are designed to be a slim-fit for comfort under their pouch.
| ergoPouch size | 00000M | Newborn | 0-3M | 3-6M | 6-12M | 1Y | 2Y |
|---|---|---|---|---|---|---|---|
| Same as size | 0000 | 0000 | 000 | 00 | 0 | 1Y | 2Y |
| Romper length (cm/inch) | 42cm / 16.5" | 50cm / 19.7" | 55cm / 21.7" | 61cm / 24" | 67cm / 26.4" | 78cm / 30.7" | 83cm / 32.7" |
| Child max weight (kg/lb) | 3kg / 6.6lb | 4kg / 11lb | 6kg / 13lb | 8kg / 18lb | 10kg / 22lb | 12kg / 27lb | 16kg / 35lb |
| Max Child height (cm/inch) | 50cm / 19.7" | 55cm /21.7" | 62cm / 24.4" | 68cm / 26.8" | 76cm / 29.9" | 84cm / 33.1" | 92cm / 36.2" |
Short Sleeve Rompers
Please use your child's weight and length to find the most appropriate and safe size for them. Short Sleeve Rompers are designed to be a slim-fit for comfort under their pouch.
| ergoPouch size | 0-3M | 3-6M | 6-12M | 1Y |
|---|---|---|---|---|
| Same as size | 000 | 00 | 0 | 1Y |
| Romper length (cm/inch) | 40cm / 15.7" | 43cm / 16.9" | 46cm / 18.1" | 61cm / 20.1" |
| Child weight (kg/lb) | 6kg / 13lb | 8kg / 18lb | 10kg / 22lb | 12kg / 27lb |
| Max child height (cm/inch) | 62cm / 24.4" | 68cm / 26.8" | 76cm / 29.9" | 84cm / 33.1" |
- Free delivery on orders over $70*
- Estimated dispatch: 14 January 2026
- Extended Holiday Returns until Jan 31st
- Tali F.Verified Buyer12/18/25ReviewingLong Sleeve Layer 0.2 TOG Oatmeal MarleRated 5 out of 5 starsComfy, soft and breathable
Great light layer for sleeping! Beautiful fabric. We bought one then immediately bought 2 more
- Ellen B.Verified Buyer12/17/25ReviewingLong Sleeve Romper 1.0 TOG DaisiesRated 5 out of 5 starsBeautiful as usual
I have never had a bad experience with Ergopouch. The quality is amazing and they have a super smart design (full access zips and foot covers). I love the TOG ratings so I have a confident starting point to dressing my baby for the night. Orders are fast and prints are cute. Thank you!
- Kristen S.Verified Buyer12/15/25ReviewingLong Sleeve Romper 1.0 TOG DragonfliesRated 5 out of 5 starsBeautiful Fabric
This onesie is easily one of the nicest I have ever felt. The material is so soft and warm without being too thick. The sizing does seem slightly large, but the size 1 still fits my 12 month old without being too loose and we will be able to get lots of wear out of it. Love the multiple zips. Would buy this product a million times over!
