MIL-S-29479, MILITARY SPECIFICATION: SLACKS, WOMEN'S (04 AUG 1995) [S/S BY MIL-DTL-29479A]., This specification covers the requirements for women's slacks. The slacks will be of one type in thefollowing classes, sizes and lengths (see 6.2).Class 1 - Polyester/Rayon, Gabardine: White, Shade 2400 or Class 2 - Polyester/Rayon, Gabardine: White, Shade 2400(Lined).