I am an adult with a small head so bought a small first ( too small) then bought a medium which is perfect! Nice and lightweight and provides excellent cover both for front of face and back of neck. Would recommend.

My husband bought one of these for my 4-year-old daughter and we've loved it so much I just bought another one for my 2-year-old son. The hat he had been using (made of cotton) was too hot and caused his head to get very sweaty. This hat is so lightweight that it is much cooler and I would imagine also more comfortable. The adjustable drawstrings (both on the chinstrap and around head circumference) make for a snug fit...stays on even when fairly windy. It provides great sun protection. It's light weight means it also dries fast which is nice when they wear the hats in the water.

I bought this adorable hat for my 4-mo-old son. I love the fact that it has a chin strap as other hats tend to fly off his little head or fall from side-to-side. The external drawcord in the back of the hat helps provide a snug fit as well. My son's head circ. is 17.5 in, so I went w/a size small (1-3 yrs). It fits fine w/the external drawcord and will give him room to grow. The only thing I don't like about the hat is that the brim gets a little bent out-of-shape due to the heavier material it's made of. Not a big deal obviously. It's a great hat! I also appreciated the service/delivery as it was quick and easy.

This hat is lightweight, folds to fit in a backpack and it's wide brim provides great coverage for little faces, ears, necks (and shoulders in my 4 year old daughter's case). I bought this hat- one each for my whole family when my daughter started asking to wear mine! Kid's size Large is the same as Womens size Medium. For our family one size works for all. I definitely recommend this hat!