The Stonz West Wellies are excellent. The sole is incredibly flexible with good grip and keep my child’s feet warm. I measured my child’s foot by drawing around and used the instructions on the site to pick the correct size wellies. We ordered the stonz wellie liner too but al the Pugh o bought the same size wellie and liner the liner was too small. We ordered the next size up wellie and liner to see what combination worked best and found the next size up liner fitted well into the original wellie size we had ordered. The returns process and communication with customer service was very easy and clear. Great customer experience. I’m no longer afraid of ordering children’s footwear online.