Most ski bindings have not changed in thirty years. When bindings comply with international safety standards, they do a brilliant job of reducing tibia fractures. However, these fractures account for only 3% of all skiing injuries, while ACL injuries have risen to 20% of skiing injuries. Surprisingly, bindings are not designed to protect the ACL while skiing. Over time, skis have changed in both shape and length—so what is the problem with designing bindings in relation to the ACL?