AT FREEZING POINT
Avoid over-dressing children who move around a lot. Headwear should be warm, light and breathable, and not too densely woven. A thin woolly hat is a great choice for hectic activities. For children who are outside for a long time without being particularly active, quilted outfits can be used when the temperature drops below +5 °C.
A FEW DEGREES BELOW ZERO
Quilted clothing is the way to go. For active children, long johns and quilted trousers are enough, and it is a good idea to make sure there are not too many layers on the upper body. Quilted mittens or gloves and a warm hat or woolly balaclava will provide good warmth.
A thin balaclava is a good base layer beneath a hat or cap. A hood can provide extra warmth, particularly if it has a fur trim that keeps warm air in front of the face. Thin mittens can be worn under outer mittens, while woolly socks and felt insoles can be used in boots. Several intermediate layers can be used. When it is very cold, it can be nice to use down-filled outerwear.