Our sizes are based on the 'average' size given as an age. If you have children that are significantly larger we would recommend going up a size; or down a size if they are significantly smaller. Generally because the gowns are a loose garment and the length is not as important as with trousers for example, most children should be fine in the main size for that age. In general it is better to go a littler larger, as a longer gown can be shortened or tacked up if need be, whilst a gown that is too short cannot be lengthened.
