This would be my second pair of harbinger gloves. First one simply loosened so much that palm used to slip out while doing pullups. The previous harbinger pro version flex closure had more leather and less vent, this latest one has more vent, as seen clearly in pictures. No experience with washing yet.
Grip and comfort feels exactly the same. I would say, go with the closest fit for your palm as per chart. These tend to loosen up soon and hence i took off one star. No complaints otherwise.