An extra-thick TOG-rated Layer for wearing under your swaddle or pouch, in room temperatures down to 53°F.
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: 10 December 2025
- Extended Holiday Returns until Jan 31st
- Helen S.Verified Buyer11/17/25ReviewingLong Sleeve Romper 2.0 TOG Oatmeal MarleRated 5 out of 5 starsLovely
Warm, high quality, a great onesie for a baby in a cold house in the winter!
- Paola G.Verified Buyer10/9/25ReviewingLong Sleeve Romper 2.0 TOG DragonfliesRated 1 out of 5 starsVery Synthetic and Hard to Return
The Long Sleeve Romper 2.0 TOG Dragonflies feels very synthetic, with a chemical smell right out of the package. I expect something different for a newborn. I wanted to return it, but the return process is complicated and frustrating. Would not buy again.
- Grace O.Verified Buyer8/7/25ReviewingLong Sleeve Layer 2.0 TOG Oatmeal MarleRated 5 out of 5 starsToasty every night = happy mummy
Our baby boy 4mo sleeps in his 2.0TOG layer every night with a sleep sack, it’s beautifully breathable material ensures he’s just the right warmth to sleep well through the night. I really like that the warmth comes from the material and isn’t bulky like some other warm grow suits. When he wakes Bubs is comfortable enough to go straight into play until dad or I are ready to do the first nappy and costume change for the day. Highly recommend, we’ll be buying the next size too once he grows!!
I should warn, I don’t know if it’s our big baby boy or the sizing, but it is snug on him, so if you’re between sizes I would suggest sizing up.
