Not one-size-fits most
582146
The picture shows a kid. And the product I received is more apt for a large man, rather than my 7-year-old who is big for his age. This is supposed to be one size fits all, but that is not the case. Otherwise, it could be a cute, even functional, hat for a large person.
1647202
Wanted to love this because it of the wonderful reviews, but unfortunately was ill fitting on my 16 month old toddler. The "one size fits all" type of sizing really fails this product, especially since 30-50lb range is pretty huge. Even on the tights setting on the back closure, she could wiggle and get her little arms out.

I'm sure they product is great for kids that can fit it properly.
2856168
These are adorable but not a one size fits all. Material stretches but doesnt fit back snug. The wasteband is very big on me so they slide down and feel almost as if they may fall off. If you are very petite with a medium or large sized rump these are for you!
572938
I'm not sure you can say one-size-fits-all. It's to tight and since it's not prime. It will cost more to return then the product cost.
4518331
Once size doesn't fit most if it doesn't fit my son.  He's bigger than average but not so much so that a one size fits most isn't comfortable - especially in this style of 'garment '.
1528484
1 size fits all - doesn't.  Too big.  It's so inexpensive though, that whatever, I just donated them and didn't worry about it.
4513704
This is not a one size fits all. Was too large for my head & would come off during the night
972739
Truth be told, I bought this hat for my husband. It's supposedly a men's one-size-fits-all hat, but I'm not sure what man's head this hat would fit, as it was immediately apparent that it would never fit my man. The sizing should definitely read "BOYS One-Size-Fits-Most" or something to that effect, because it's very clearly NOT made for an adult male with a sexy, man-sized cranium.

It is, however, quite the right size for MY head. So while my husband seethes that the hat meant for his melon is resting comfortably on my head, I am quite happy with the early birthday gift! Looks great with most outfits, and fits snugly.

Ladies: if you dig a well-made military-style cap, this one's for you.

Gents: unless you've got the head of a small child, keep looking.
105588
This item should not be advertised as one size fits all. i am a size ten and it did not go past my hips.  I am definitely returning this.  Please, please change the description from one size fits all cos it doesn't fit.  This is misrepresentation.
3286911
I like it, but I'm not sure if the "one size," will fit me.  The quality is nice, but would have been more beneficial for me,  if it was more size specific.
4414214
It was quite large for my head and I needed to return it. Definitely not a "one size fits all"
2046323
At the time of purchase, this converter was labeled as "One Size." This product is NOT one size! I wear a 34DDD, and even when this converter was at its smallest, it did not fit correctly as described (there was way too much of the band left to hook above my navel). I also tried to wrap it around twice, at its largest, but it was too tight around my waist and didn't seem to support my chest. Please beware if your band is <36 -- this will not fit and support you correctly! On the brand's website, they have a small/medium size for people with bands <36. Purchase this instead.
1611221
This IS not fit for an adult.. I am not a small groined man, so No NOT one size fits all.
Need to make it larger for that to be the case.
3070220
Well made, lovely material.  However, pants are definitely NOT one-size-fits-all.  Elastic in the back and an adjustable tie in the front, but will only stretch to fit about 24".  Length may also be too short for anyone over 5"7'.
1380155
It's a pretty color and has a nice feel, but the one I received is larger and longer than it looks on the model. Bought it for a size 4, 5 ft 7 inch person and it was too large.  It was more like a size 8-12, so I returned it.  It is quite stretchy. Since it's "one size fits all", it can't really be expected to fit everyone perfectly. My return was accepted with not problems.
3830868
This is not one size fits all. It has a label that says it is medium. If you do wear a medium, it is a pretty good buy for the price.
1557641
Liked the design but this is definitely not one size fit all. I would assume that if it was one size fit all the band part would be stretchable so it could expand to fit around any head.