PLEASE NOTE: These hats are in the sale because they are wrongly labelled. The size you will receive will be the correct size physically and will match the diagram below, but the labels on the hat may be incorrect. Pebble products are made entirely by hand with natural materials and as such there will be slight variations in size, colour and design in line with the unique nature of this product. Materials: 100% New Zealand merino wool. Size: XS, Measured Flat 117 cm. This size is designed for a baby approximately 0-6 moth old. Babies vary hugely in size with normal birth weight size being anything from 4lbs to 10lbs so it is best to measure before buying to ensure you get the right size for your baby. Care instructions: Hand wash with care