These Klim gloves fit more like American branded gloves than European branded gloves (which run a bit smaller). If you have experience with brands like FirstGear, Tour Master, Joe Rocket etc, I think youβll find the fit comparable. If you have no previous experience with glove sizing, go here for help.
Just as an FYI, you may have previous experience with Alpinestars and REVβIT! which generally run about one half size smaller, size-for-size, than Klim. So if a particular size in either of those brands is roomy on you, then you may be able to go down one full size in this style.