The NFL Fashion Police are cracking down, again, and this time they're hitting the Pittsburgh Steelers.

Two Steelers players, wide receiver JuJu Smith-Schuster and running back James Conner, were each fined $5,000 for violating the league's all-important regulations on … sock length.

On Tuesday, the Steelers wideout shared a notice from the league explaining the fine on his Instagram story. “Your stockings failed to cover your lower leg,” the NFL states in the note, which clarifies the league's absurdly specific policy on how these adult humans must wear their socks.

See for yourself:

The Steelers certainly aren't alone when it comes to these types of penalties. In 2013, the league fined then-San Francisco 49ers running back Frank Gore for similar reasons after the NFC Championship Game, though Gore was forced to pay $10,500 for his violation.

If you're interested, here's the specific text in the NFL rulebook on “stockings.” There's a lot going on:

Stockings must cover the entire area from the shoe to the bottom of the pants, and must meet the pants below the knee. Players are permitted to wear as many layers of stockings and tape on the lower leg as they prefer, provided the exterior is either a: (a) one-piece stocking that includes solid white from the top of the shoe to the mid-point of the lower leg, and approved team color or colors (non-white) from that point to the top of the stocking; or (b) solid color stocking (i.e., entire stocking from bottom of pant leg to top of shoe), but all players must be in the same stocking style and color in any particular game.

Solid stockings must be a consistent color from the bottom of the pant leg to the top of the shoe. Uniform stockings may not be altered (e.g., over-stretched, cut at the toes, or sewn short) in order to bring the line between solid white and team colors lower or higher than the mid-point of the lower leg. No other stockings and/or opaque tape may be worn over the one-piece, two-color uniform stocking. Barefoot punters and placekickers may omit the stocking of the kicking foot in preparation for and during kicking plays.

Obviously, the money is meager for Conner and Smith-Schuster, and the Steelers are generally in good spirits as the league's only unbeaten team through eight weeks.

But, still … come on NFL.