Runs SMALL, nice hat otherwise
934887
This hat fits VERY snug.  I ordered the small/medium size, and I can just fit it on my shaved head after a lot of stretching.  But it is a nice hat.  Soft material, thin but very warm.  4 stars for the hat itself.
2858567
This item was too small for my 10 year old daughter.  Other than the sizing issue, the hat is well made.  If it fit her, I would have kept it.  I will be returning the hat.
3162683
The hat was too small for my head.  I have another hat which is the same size s-m and it fits me, but this hat runs small.
1027878
It seems like a nice Hat, good material... but it's just too small. I guess I need a custom hat for my extended head. So, if you need a 24 or larger hat, don't buy this one. If you need less than a 24, this hat is probably right for you.
1921163
Fits a bit small or maybe I just have a big head. My hat size is 7 1/2. fits tight.
997822
This a great, warm, hat, but I have an average sized head for a man (not real big) and "medium" is too snug.
2216422
Sized much too small for my head. I returned it and ordered another hat that fit better.
4834541
Nice quality, I had to exchange it as the initial Top Hat was too small. I measured according to their sizing chart. I'd recommend one size up for those looking to purchase.
307749
I really liked the look and quality of this hat. But it was just too small and unfortunately has been returned.
1232286
Ordered the Medium and it was a tad tight- small.  Usually works for me.  Ordered a second hat from another mfgr, at the same time in a Medium and it fit perfectly.

Otherwise, this is a nice brim and seems well made.
3690935
Runs small. My 4 year old is the size of a small 3 year old and this hat was way too small for him.  The quality was decent enough for the price and it arrived on time.
2240973
Hat runs small.  Be sure to buy a big enough size.  Hat is very warm.
2279316
Very nice hat just a lil small. Im a 71/4 and Med a lil too tight but wearable without headaches
4940435
This was slightly smaller than expected.. Hat itself is great. Since it's tight on my head, I have trouble wearing it for long periods.
248313
This appears to be a nice lightweight hat. Unfortunately, it runs too small for a "one size fits all". Most of these hats will fit heads up to 60cm of circumference or so. I doubt this hat will fit people with heads over 58cm. If you have problems with "one size fits all" caps, this hat is definitely not for you.
2816835
The hat itself is fine, my grandson says its too small. Hopefully it will loosen up as he wears it more.
4424674
It's a cute hat, however I normally wear a medium cap and this is definitely, small, way too tight for me. There's no strap in the back so no way to adjust it. Returned it for exchange or refund.