Our products – including our wellies – are only available in single width fittings. This is usually comparable to a F/G: the average width fitting for the majority of children today. For children whose feet might be narrower than an F, many of the Term children's shoes that are only available in single width fittings have adjustable fastenings. These allow the footwear to be adjusted in key places around the foot. They therefore still provide the best possible fit for your children’s feet. For children whose feet are narrower than a F fitting, we recommend visiting one of our stockists for further assistance. Our wellies are an F fitting with the sock worn. It’s important to note that our children’s shoes are not always universally suitable for all children’s foot shapes. If you are in any doubt as to the suitability of a particular shoe, we recommend visiting one of our expert stockist.