As a rough rule of thumb: you count as one layer of clothing for your baby, and your Izmi counts as at least another. If you’re indoors, or going for a brisk walk and generating some heat, that’s like adding a third layer.  That’s 3 layers already! Always bear this in mind when dressing yourself and your baby. Our recommendations are: In cool/cold weather: keep your baby in indoor clothing, adding a hat and booties and/or rain cover if needed. Here are some tips for staying warm and dry when babywearing. In very cold weather: as above, with a coat or other warm layer around both of you. Avoid bulky snowsuits to prevent overheating. Keeping your baby close to your body, without bulky fabric between you, will make you more aware of how warm or cool they are. When you head indoors you can easily undo your coat to help prevent them - and you - from overheating. In hot weather: your baby may be comfiest in just their nappy and a sunhat! Here are some more tips on how to stay cool when babywearing in hot weather.