Glad I went with the smaller size
353956
These are perfect.  I chose the next down and they fit perfectly.
2478464
I was glad I read the other reviews before I purchased these. I wear an 8 1/2 - 9 depending on the brand, but others said that they ran large. So I took a chance an ordered a size smaller. Boy am I glad I did. They fit perfectly. If I'd ordered my actual size, they would have been way too big!
546019
I usually wear 3/4 (small) but I had to exchange to smaller size 1/2 which fits better. Otherwise, it is more than worth the price, very classy.
4688309
I suppose one could say I have a peanut head, so I went for the small/med size, maybe I should have gone smaller
4432223
got a smaller size and love it's skin tight fit!
2675940
I am glad I went for the 2XL. The top is still a bit small but will work for my costume.
3512479
I am so glad I go this one, I might order the smaller one just so I can have a more portable one
658051
I am glad I bought a size bigger than I wear normally.
2349226
I got a 6.5 W because that's my usual size. These fit just a smidge too large, but not a huge problem since they tie and I can wear thicker socks with them. Overall, happy with the purchase.
4472115
Great bag to have, I couldve went with a smaller size but thats on me. I would highly recommend!
2008273
I was borderline between 2 sizes.  I'm really glad I went with the XL even though 58 cm is listed for either L or XL.  L would have been uncomfortable.

Happy with the helmet.
2444253
I like the color. The fit is good. If you're on the fence between a small and a medium, I'd say go for the small.
3215620
I bought both the large and medium. I liked the smaller size. I normally wear between a 6 and 8 in dresses
2031745
I expected these flip flops to be bigger as the reviews said to buy an entire size smaller.  I am typically a 8.5, sometimes a 9.  I bought an 8.  These fit fine, I actually considered sending them back and taking my chances with the 9's.  But out of laziness and uncertainty about the 9's I decided to keep them.  Now that I have worn them a couple of times, I am starting to break them in.  The fit is much better.  Stick with the smaller size.  These are softer than Old Navy flip flops, but not has cushiony as my reefs.  For the price, I really like them.  The spots are cute.  They work well with a variety of outfits.  I recommend these to others looking for a mid grade flip flop.
1372996
I wish I would have gotten a size smaller they stretch really nice. If you position them higher they won't really slide, it does take some adjusting to get use to them
969017
I bought two sizes for my daughter because she's over 12 months but very slender.  I'm glad I read the reviews and went with my gut because the medium fits her perfectly (she's 16 month and only just 20lbs).  We've gone to 4 swim classes so far with this and no accidents.  Thankfully, no #2 yet, so I can't help out with that.  We're keeping the large, as well.  She'll use it eventually.
844929
I'm on the cusp of fitting into a medium or a large (depending on brand). I got a medium based on other reviews and the medium is a perfect fit (if not still a little big). I would recommend going with the smaller of the two sizes you may be contemplating.