Copied from link shown below:
"Colonel Washington expressly orders, that no Officer do provide himself with any other kind of Clothes than those ordered the 17th of September last as they will not be allowed to appear in them. Every Officer who has not complied with that order, to do it immediately—and they are all to procure Sashes, if to be had—They may be supplied with Hats, and waistcoat-lace, at Mr Peters’s, Rock-Creek—and sword-knots— . . ."
And the order on September 17, 1755? GW's order, “a Suit of Regimentals of good blue Cloath, the Coat to be faced and cuffed with Scarlet, and trimmed with Silver: a Scarlet waistcoat, with silver Lace, blue Breeches, and a silver-laced Hat.”
Notice GW mentions "blue Breeches" in quote above?
Notice in portrait below, the "Breeches" are red.
Breeches are the pants.