The M-1961 combat field pack is used to carry individual rations and equipment that are essential during field operations.
The M-1967 combat field pack is larger than the M-1961 field pack and made of nylon.
The MOLLE II waist pack has a volume of approximately 350 cubic inches.
Military specification MIL-F-40165 covers one type and size field pack fabricated from olive drab cotton duck and webbing.
Military specification MIL-F-43733 covers a field pack fabricated of olive green, water repellent treated, 7.25 ounce nylon duck
Military specification MIL-F-43997 covers one type and size training field pack.