Really cute hat, but sizing is misleading.I did not see these marked as for children. I bought the XS and Small, thinking they were sized for adults, even though I wanted them for my kids. They still fit small! My 4&1/2-year-old barely fits in the Small, and her head is 20" circumference. My 6&1/2-year-old did not fit in the Small. There was really no sizing info in the product details. The package did come with a sizing chart which should have been incl. in the product description on Amazon.Happy with the hat, but it's a bit thinner material than I expected. I'm sure it will spend a lot of time on my head this summer.We bought the Desert Sunrise color, thinking it would be a unisex red. It's definitely more of a pink, with pink details on the front. Great hat: good stitching, lightweight, breathable, dry-fast fabric.My 3 year old has a large head so I ordered a large and it fits great with just a little room to grow. Light weight and easily folds to fit into a pocket or small backpack.Good quality hat for the priceGave it to a friend with a smaller head! She loves it--well-made and attractive! I would recommend.This hat repels water and looks good. The medium should fit most women without flattening their hair. It has a little hidden compartment in the inside top of the hat, a nice surprise. A good place to hide a key or maybe even keep a phone.I ordered this hat because I could get it a little larger than me head. It doesn't crush my hair. Also I can roll it up and keep it in my pocket to use when needed. I like it color, it goes with everything.Slightly large but I like it that way & the size is listed as medium. My head is about 55-56 cm roughly. Nice quality.Great hat. All of our OR hats fit a little large.