I buy 6 1/2 and they feel a little tight at first. I find after awhile they stretch out, especially over the knuckles. My SA advised that I make sure the gloves are always on properly -- pushed right down between the fingers -- so when they stretch it is in the right places.
They definitely fit tight at first. They will stretch out. I have the longer style leather ones that are cashmere lined. In fact I love them so much I have them in hot pink, teal, black and brown!