chip1

I'm interested in buying one of their shoes but I would like to know how they run in size, particularly compared to Shimano and Specialized which I own. I wear 42 in Shimano and 41.5 in Specialized, so I'm torn between these two sizes. Giro's chart indicates 41.5 is equal to 8.5 which is what I wear for most sneakers, but I also read from searching that they run small. I don't really want to go to the LBS to try them on then waste the employees' time by buying cheaper online, which is what I intend to do. Any help would be appreciated.

Sy Reene

Hard to equivocally say. I wear a size 49 Giro, and a 49 Sidi, and a 48.66 size for Mavic. For running shoes, I'm in a 14 US. For dress shoes I wear a size 13 US. ymmv

Dopefish905

I own 2 pairs of giros, empires and trebles they both fit 44 on me which is 10.5us which is what I wear..they don't run wide though so if you have a wide foot iunno...waste the employee's time and try for yourself imo, shoes are finicky

Dan333SP

I have a pair of Giro Factors and also an older pair of Shimanos. They are both 47s, the Shimanos feel a bit bigger at that size but not by much. Both fit.

adamhenry

I have a pair of Shimanos and a pair of Giros. Both are 45s and fit equally.

PepeM

I have two pairs of Giros. One in 41, the other in 41.5. The 41.5s are probably a bit tighter, if anything.

RushFan2112

Here are my numbers - hopefully you can glean some useful data from it:

Giro 47
Sidi 47
Bontrager 46

Running shoes (usually Hoka or Saucony)12.5

chip1

So it looks like I should match Shimano's size. Thanks guys.

BKE

My running shoes are Brooks in a 8.5, my Giros are 42.