Lightweight Rucksack
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The lightweight rucksack with aluminum frame was developed by Natick Laboratories for cold weather and mountain use as an initial effort to develop lightweight load-carrylng equipment in 1961. It weighed 3 pounds (1.4 kg) as compared to the 7.5 pound (3.4 kg) cotton rucksack with steel frame which it replaced.
Large Combat Field Pack
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The large field pack is designed to carry up to 70 pounds of existence loads which include clothing, personal items and rations.
Medium Combat Field Pack
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The medium field pack is designed to carry up to 50 pounds of existence loads which include clothing, personal items and rations.