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: 12 February 2026
- 30-day returns and exchanges
- Odile A. D.Verified Buyer2/3/26ReviewingLong Sleeve Romper 1.0 TOG Oatmeal MarleRated 5 out of 5 starsSuch a gem for Winter babies
I’m glad I found this product to keep my baby warm during these below freezer temp. Baby stay in house and this onesie are perfect to keep him warm. It fits true to size
- Alanna M.Verified Buyer1/19/26ReviewingLong Sleeve Layer 0.2 TOG Oatmeal MarleRated 5 out of 5 starsLove
Love this tog pj. The quality, colour and design with the multi zip to the back of the bum is great. Will be buying more.
- Cassandra W.Verified Buyer1/6/26ReviewingLong Sleeve Romper 1.0 TOG Oatmeal MarleRated 3 out of 5 starsWarm pjs
I loved how warm they are and the fabric is soft. But the zipper on the back/butt area is poor design. I don’t want my baby laying down with zippers jammed into his back. Ultimately not using these due to this.
EUergopouch US1/16/26Hi Cassandra
Thank you so much for sharing your feedback. We really appreciate you taking the time to let us know about your experience with the long sleeve layer. We're sorry to hear that the zipper placement would not be ideal for your little one.
Our rompers are designed with a unique 3-way zipper that allows for easy nappy changes without having to fully undress your baby. The zipper can be adjusted to sit at the front or along the crotch area, so your baby doesn't need to lay on it while resting or playing.
We completely understand that comfort is everything, and we hope this helps you get the most out of your layer.
