From the canvas haversacks of the Revolutionary War to the modular designs and MOLLE systems used in modern warfare, military rucksacks have seen significant advancements in functionality and durability. Newer doesn’t always mean better, though. Here we will go over the top 10 rucksacks ever issued by the US Military.

Not familiar with military rucksacks? Check out our selection of military surplus packs here.

1. ALICE Pack

The ALICE (All-Purpose Lightweight Individual Carrying Equipment) pack is iconic for its durability and modular design. It features a large main compartment and external pouches for additional storage. The pack is made from tough nylon canvas and includes an adjustable, padded hip belt and shoulder straps for comfort. Its simplicity and effectiveness made it a staple for soldiers during the late 20th century.

• Issued: 1970s
• Capacity: 40L (medium), 62L (large)
• Modularity: Compatible with ALICE-specific pouches and accessories

Shop Army Surplus ALICE packs here.

2. MOLLE II Rucksack

The MOLLE II Rucksack represents a significant upgrade from the ALICE pack, offering enhanced modularity and comfort. Constructed from durable 1000 Denier nylon, it boasts a large main compartment with a total capacity of 5,000 cubic inches. Its modular design allows for various attachments, including sustainment pouches, making it versatile for different missions.

• Issued: Early 2000s
• Capacity: 81L (large)
• Modularity: Fully compatible with MOLLE II accessories and pouches

Shop MOLLE II rucksacks here.

3. ACU Assault 3 Day Pack

The ACU Assault 3 Day Pack is designed for short-term deployments and field exercises. With a compact yet spacious design, it includes a large main compartment, a front zippered pocket, and a small utility pocket. Made from durable denier nylon, it is water and abrasion resistant, featuring slots for hydration systems and radio antennas.

• Issued: Mid-2000s
• Capacity: 30L
• Modularity: MOLLE webbing for additional gear attachments

See the ACU Assault 3-Day Pack here.

4. Mystery Ranch Overload Rucksack

The Mystery Ranch Overload is known for its innovative 3-zip design, which allows rapid access to the pack’s contents. Its expandable frame system facilitates additional load carrying while maintaining optimal weight distribution. Constructed from custom 500D Cordura with Teflon and PU coatings, it ensures maximum durability and weather protection.

• Issued: 2010s
• Capacity: 50L
• Modularity: Equipped with MOLLE webbing for customization

Shop the MR Overload pack here.

5. USMC FILBE Rucksack

The USMC FILBE (Family of Improved Load Bearing Equipment) Rucksack is designed for the Marine Corps' demanding field conditions. Featuring a frame for enhanced load distribution and comfort, it offers a total carrying capacity of 81 liters. Made from waterproof-coated nylon, it includes MOLLE webbing for additional pouches and gear.

• Issued: 2000s
• Capacity: 81L
• Modularity: MOLLE webbing on multiple areas for extensive customization

See USMC FILBE kits here.

6. FILBE 3 Day Assault Pack

The FILBE 3 Day Assault Pack serves as a companion to the main FILBE rucksack and is designed for short missions. It features a large main compartment, a smaller outer pocket, and MOLLE webbing for additional attachments. Made from durable Cordura nylon, it includes a plastic frame sheet for added stiffness and support.

• Issued: 2000s
• Capacity: 30L
• Modularity: MOLLE webbing for attaching additional pouches

Get a military surplus FILBE 3-day assault pack here.

7. M-1936 Field Pack

In 1936, the Army introduced the M-1936 canvas field packs based on the design of the British musette bag used by officers in WWII. The pack could be worn on a single shoulder strap or attached to a set of web suspenders. It has several pockets and is the perfect size for an EDC rucksack.

• Issued: 1936
• Capacity: 25 liters
• Modularity: Limited modularity, basic design

8. M-1956 and M-1961 Butt Packs

The M-1956 pack resembles the M-1936 field pack, but was typically worn on the back of a pistol belt (hence the name “butt pack”). It could also be worn higher up on the back with suspender straps. The M-1961 version was improved with a larger, rubberized compartment.Unfortunately, it’s hard to find genuine army butt packs, but Rothco makes a vintage rucksack that is similar in style to it.

• Issued: 1956
• Capacity: 25 liters
• Modularity: Limited modularity, basic design

9. Gregory UM21 SPEAR Ruck System

The Gregory UM21 SPEAR Ruck System is a specialized pack used by Special Forces. It includes an internal frame system and MOLLE webbing for modular attachments. Available in woodland or desert camo, this rucksack is designed for both main and assault pack configurations, offering versatility and durability.

• Issued: Early 2000s
• Capacity: 90L; variable with modular components
• Modularity: Extensive MOLLE webbing and interchangeable parts

10. London Bridge Trading (LBT) 1476A Rucksack

The London Bridge Trading 1476A Rucksack is a robust tactical pack designed for special operations. Made from 1000 Denier nylon, it features an internal frame for support and multiple compartments for organization. The pack includes MOLLE webbing for modularity and a padded hip belt for comfort during extended use.

• Issued: 2000s
• Capacity: 30L
• Modularity: MOLLE webbing for attachments and customization