I know what you mean, but there is no padding anywhere in that region, it is just the closure system, which is very thin. I bought the pants, I'll try to get a picture of it.
There is less protection in that area. However, I do not think it will cause any big gaps. Last game (I paid more attention than I ever have to that region and) I noticed that the flap of the 3S pants overlap quite a bit with the extension pad (bottom) of my Ultrasonic shoulder pads, when you are in a skating position.
Overall, the pants are very nice and I am happy with them.