Uniform coat ("Frock coat") - Finely woven dark blue wool, trimmed with light blue piping on the collar and cuffs, with nine buttons in front, two small eagle buttons at each cuff, and two buttons at the back at waist height.
Fatigue blouse ("Sack coat") - Lightweight wool of a shade between a medium and dark blue color, with one pocket inside the left breast and four brass eagle buttons. While the Regulations specified that these would be unlined, lined fatigue blouses were quite common. Button holes should be hand-finished.
Trousers - Lightweight, sky blue kersey wool, cut so that the top of the waist band reaches the wearer's navel, with a noticeable rise in the back. No pleats or creases. For early war, dark blue wool trousers.
Shirt - Acceptable: Civilian pattern Osnaburg shirt or Canton flannel undershirt. Better: Contract Pattern flannel issue shirt. Best: Domet flannel issue shirt. White cotton and muslin shirts as well as plaids, stripes or other pattern material are not acceptable.
Shoes (Jefferson pattern "brogans") - Black leather, sewn or pegged, roughout or smooth. No boots for enlisted men.
Waist belt - Black leather, with leather keeper or without keeper. The oval US plate is the standard for privates and corporals; first sergeants and musicians will wear the rectangular sword belt plate with silver wreath.
Forage cap - 1858 or "McDowell" pattern. Finely woven, lightweight dark blue wool with painted leather brim and leather chin strap fastened on the sides with miniature eagle buttons; liner of black or brown polished cotton. We currently wear the infantry bugle, '3' and 'K' on the crown of the forage cap.
Hat (Dress hat, "Hardee hat") - For enlisted men, black felt, with a double row of stitching around the brim and black leather sweat band. The brim to be turned up on the left side, with the loop held in place by a stamped brass eagle. The hat to be trimmed with a sky blue cord, a single black ostrich feather on the side opposite the eagle, and the bugle, 3, and K arranged on the front of the hat above the brim.