TinyLayers guide
Winter Car Seat Coat Rule (Why Puffy Coats Don’t Mix)
Quick answer
Don’t put bulky coats under the harness. Thin layers under, warmth over the straps after buckling.
- Bulk under straps = dangerous slack
- Thin layers under harness
- Coat or blanket over after buckling
The safer winter routine
Pre-warm the car if you can. Dress in thin layers, buckle, then cover.
This is general dressing guidance, not medical advice. Every baby is different — for fever, premature birth, or any medical concern, follow your clinician.
Frequently asked questions
Are thin puffer jackets okay under straps?
If it’s bulky/compressible, keep it off the harness path. When unsure, put warmth on top after buckling.