I wear a 9 to 9 1/2 in regular shoes. ...
I wear a 9 to 9 1/2 in regular shoes. What size would you recommend for sport climbing?
You should size them at least one size (or more) below your street shoe size.They will stretch to fit to some degree.Size 40,40.5 or 41 but honestly you should try them on before buying because the fit of a climbing shoe is a personal preference.
I wear the same size as you, and I wear a size 37