M-1951 FIELD TROUSERS. Original Korean, Vietnam War, vintage surplus , M-51 Field Pant. These Field pants are olive drab, sateen cotton, with suspender loops and buttons. Buttons on the inside of the waist are for the optional field-trouser liner. Large Regular fits 35" - 39" waist and 29 1/2"-32 1/2'' length All new - straight out of the original carton. Mint condition.