As a mum of four, I know full well that children come in all shapes and sizes, and that it can be really hard buying online when you can't compare as easily. So here's a size chart to help you (if you can hold them still long enough to get a measurement ...).
I've been sewing and selling these items for enough years to be confident of accurate sizing. If you're unsure, send me a message to discuss or just size up - cuffs can always be folded under or rolled up. If the child you're buying for needs extra length or a smaller waistband, please leave a note at the checkout - that's no trouble at all.
Larger sizes available in all styles upon request, dependent on capacity - so please message me for further info.