What is the current state of the law on the right to search and seize white pants?

The witnesses to the April 14 robbery described the robber as wearing white pants. The pants in evidence were taken during a search incident to a lawful arrest on April 20, 1967, some years before June 23, 1969, the effective date of the restrictive ruling in Chimel v. California, 395 U.S. 752, 89 S.Ct. 2034, 23 L.Ed.2d 685 (1969). See Williams v. United States, 418 F.2d 159 (9th Cir. 1969), decided October 17, 1969. The pants were legally seized.