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  Grooming standards that appropriately differentiate between the genders are not facially discriminatory.

We have long recognized that companies may differentiate between men and women in appearance and grooming policies, and so have other circuits. See, e.g., Fountain v. Safeway Stores, Inc., 555 F.2d 753, 755 (9th Cir. 1977); Barker v. Taft Broad. Co., 549 F.2d 400, 401 (6th Cir. 1977); Earwood v. Cont'l Southeastern Lines, Inc., 539 F.2d 1349, 1350 (4th Cir. 1976); Longo v. Carlisle DeCoppet & Co., 537 F.2d 685, 685 (2d Cir. 1976) (per curiam); Knott v. Missouri P. R. Co., 527 F.2d 1249, 1252 (8th Cir. ...