I ordered the light gray hat for my 12-month old in size 18 months. Fit was perfect. There is an elastic in the back, allowing to adjust to a bigger head size. The hat was used for a family photo shoot. It looked great in the pictures. I ordered products from Armoniia before (bow ties and suspenders) and will order again in the future. Excellent service and very fast shipping to Canada. My order was shipped the next day before noon and delivered to my door in less than a week. I highly recommend this brand. Products are good quality.