First noticed in this amazing video of their Season opener in Los Angeles, The Lions began using 2 different helmet colors - red for skill players and black for linemen.
Also, Lions wore stripeless silver pants for this game as evident by their pants not match the officials' white uniforms.
Further photographic evidence shows that this was not just for night games.
|11/7/48 - DET @ CHC|
All games beginning with Lions' last preseason game will utilize gifs of both helmet combos.