Nike faithfully runs one size smaller!
920412
I read all the reviews prior to ordering these shoes, which most people said they run large. I should have from experience simply gone along with my own knowledge, and ordered a size up, because Nike always runs a size smaller than what I actually wear. I am, in other running shoes a true size 9, but with Nike I usually order a size 10. For this shoe I read the reviews and ordered a size 9, and they are a bit snug.
They are overpriced also!!
868874
Previous reviewers were right, these shoes run small.
About one size smaller than my usual shoes.  I have smallish feet but usually buy a 7 1/2 which fit perfectly with socks.  I bought the 7 1/2 shoes figuring I wouldn't have the same issue as other reviewers have mentioned.  No such luck:)  These fit like a 6 1/2 would & without socks.
Besides the small fit, I absolutely love these shoes!  They are comfortable in every aspect you'd expect from an athletic shoe.
I am returning this pair (love Amazon return policy:)  and have just ordered 2 new pair of 8 1/2 shoes in different colors.
1635801
I've noticed that designer under ware generally seams to run small, so I order one size larger of these and they fit great!
4899427
For everyday, run-around shoes, I've stuck with the brand with the swoosh for quite a long time. But I'm certainly not disappointed in this switch! Based on other reviews, which generally indicate that these shoes run a tad small, I decided to purchase a half-size larger than the competitor I often buy from. The toe-to-heel fit of these in a size 12 is very similar to that of the shoes they replace, which were 11.5. These are also a bit narrower, which suits me just fine, since my feet aren't particularly wide. Other than fit, all I have to say is that they're stylish and comfortable. No complaints from me!

Long story short: if you wear size 11.5 Nikes, buy these in size 12.
2101441
I listened to the reviews that said these run 1/2-size large and even though I ALWAYS wear a women's 11, I ordered the 10.5. They fit perfectly! Maybe all adidas shoes run this way, but my past several pair of athletic shoes (nike and asics) and ALL of my dress shoes are a women's 11, so I really was trusting the information provided by other reviewers. I'm so glad I did. I like the styling, the fit, the overall support, and comfort.
4776795
only one little and stupid thing need to be mentioned is that the size is a little bit small and narrow than what it was marked~~~some of my friends told me that it is the "tradition" of Nike~~~anyway enjoy it
BTW, i got it from some small seller with a discount price since they only have the size which is exactly the ones I need~~~
459730
I received my shoes today I am very pleased with my purchase. I am glad i read the reviews on them running a little smaller. I normally wear a 6 and I got a 6 1/2 and they fit perfect! The stitching on the top of the shoe looks a little thin but other than that they look great and are also very comfortable! And the shipping was quicker than expected! I will defiantly be ordering more of these shoes!
3490789
Great shirt, great attitude! These shirts have just enough heft, but they do run at least one size small. I'm an L/XL and had to order a 2XL.
1943543
My daughter has a pair of Nike cleats that are getting worn.  So before they broke from hard wear, I ordered a new pair.  However after reading all the reviews I ordered 1.5 size larger than what she has.  Well that was a mistake.  They were way too long and I had to send them back.  Now she doesn't have new cleats and her old ones broke at practice this evening.  I am so glad the reorder was so much cheaper that I could afford to have 2 day shipping and still not spend as much as the 1st pair.  Some things work out for the better, others not.  So if your already have Nike and need new and not a new size go with what you have.  The cleats were very nice and we hope the next pair fits correctly.
1729506
Exchanged them for one size larger and I am in  Heaven! I will not hesitate to by again through Amazon
2236900
runs small - order one size larger for best fit
3987979
I bought these shoes for my daughter as a uniform shoe.  She loves them!  A shoe that wears like a sneaker.  I did read the reviews prior to placing the order, and I am glad I did.  Size listed is not true.  Order one size smaller than what your child would actually take.
3562280
Word of caution- These run pretty small.  Ordered these for my wife who is right around a women's 7, so I initially ordered the XS (W 5-7.5).  Holy cow! There was no way these were going on, much less being anywhere near comfortable in use.  So I exchanged them for a S (W 8-9.5) and they fit much better.  My wife said they were still a bit tight, but some tension is to be expected in order for these to stay on.  My recommendation when ordering is to start one size larger than they say to order.
4693165
I usually wear a 10.5 or 11 in brands like Nike, but a 10 fits perfect in Reef shoes.  Very comfy.  Love 'em.
3841850
I had tried on a pair at a "Running" store and good thing I did. I had to go up 1/2 size for a comfortable fit. I haven't worn Nike brand for many years, they didn't have anything I liked (colors,style,weight of shoe).
I really like these Pegasus 32 and ordered a second pair. Great color selections.
If you are unsure about sizing, try them on at a store first. As I said, I hadn't worn Nike in a long time so I needed to try on the shoes to get the right size since I wear a different size in other running shoes.
4236504
My daughter has a pair so knew they ran small. I ordered one size bigger than I normally wear and they're perfect! I absolutely love them!! I'd recommend to anyone!!
617824
These are adorable and perfect sneakers! I just wish I knew the chucks always run one size larger. My friend told me that after the purchase. I ordered a 6 for my daughter which is her size at 20 months and they honestly aren't that bad and actually work at a little larger than her normal size but I would have ordered a 5 if I had known they run one size larger.