The NFL is everchanging ... new primary logo on a third helmet, it will be a brutal miss on the marketing and innovation fronts. This helmet would sell mini replicas at a nauseating number.

The NFL reported that five new helmet models available this year tested better on safety than any previous models and did as good a job of reducing concussion or force as the Guardian Cap.

MIAMI GARDENS, Fla. (AP) — Guardian Caps are soft, protective helmet covers that the NFL authorized players to wear during games this season in an effort to reduce head injuries. Several players have ...