What do you think this pain would rate on a scale of 1-10? Let us know in the comments👇 A ski binding is a part that connects a ski boot to the ski. You "snap" in by pushing in your toe, then down hard on your heel. So if his thumb was in a portion of the binding, he basically had his entire body weight (plus extra force) on that small area of his thumb tip. Not a good time. Our guess is that maybe he tried pressing the boot onto the ski with his hand. Might have been trying to get the boot fitted correctly onto the binding. Then got his thumb jammed in that little bar you see in the photo.