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Pre Order Now. SHIPS NOVEMBER 16
British military MK3 Virtus 90L Bergen rucksack in MTP camouflage
British Military MK3 Virtus 90L Bergen Rear View

British Military Virtus 90L Bergen Rucksack

$149.99

Genuine British military MK3 Virtus 90L Bergen rucksack in Grade 1 condition. Built for carrying substantial loads, with generous capacity for multi-day camping, hiking, bushcraft and emergency preparedness.

Pre-order item: Ships November 16, 2026. Orders placed now will be charged at checkout.

Country: United Kingdom

Surplus Grade: Grade 1

Sizing Guide (Upper Body)
Sizing Guide (Trouser)
Surplus Grading

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The British Military Virtus 90L Bergen is a genuine military-issue rucksack from our UK military surplus range, designed for carrying substantial loads over extended distances. For American customers, “Bergen” is the British military term for a large field backpack or rucksack.

During my time as a Royal Marines Commando, a dependable Bergen was one of the most important pieces of equipment we carried. The Virtus offers approximately 90 liters of capacity, providing ample space for sleeping gear, clothing, food and other bulky outdoor equipment.

Who’s it for?

  • Multi-day camping
  • Backpacking and hiking
  • Bushcraft
  • Hunting
  • Overlanding
  • Emergency preparedness
  • Carrying bulky outdoor equipment
  • Military-surplus collections

Why I Recommend It

This is the type of large-capacity military rucksack I would choose when durability and carrying space matter more than saving a few ounces. It is substantial field equipment rather than a lightweight recreational backpack, making it a strong option for demanding use and heavier loads.

Key Features

  • Approximately 90-liter capacity
  • Genuine British military issue
  • MTP camouflage
  • Adjustable carrying system
  • Multiple access points
  • MOLLE attachment areas
  • Load-stabilizing compression straps
  • Compatible with additional Virtus pouches

Muster Point Note:

My recommendation is based on my experience with British military load-carrying equipment as a former Royal Marines Commando. The Virtus system entered service after my time, so I do not claim to have been personally issued this particular model.

Weight 9 lbs
Dimensions 26 × 16 × 12 in

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Upper-Body Sizing Guide

Measure around the fullest part of your chest while wearing light clothing. These are wearer body measurements, not the garment’s flat width. Letter sizes are approximate MPO equivalents; use the original military size and product fit notes first. Inch values are converted from centimetres and rounded to one decimal place. If your measurement falls between the listed ranges, check the product’s exact size and fit notes.

Approx. sizeChest (in)Chest (cm)
Small34.6–37.488–95
Medium37.8–40.696–103
Large40.9–43.7104–111
X-Large44.1–46.9112–119
2X-Large47.2–50.0120–127
3X-Large50.4–53.1128–135
4X-Large53.5–56.7136–144

Choose height separately from chest size

Military upper-body size = wearer height / wearer chest, in centimetres. Small, Medium, Large and XL describe approximate chest size only. They do not specify height. Two jackets can both be Medium but have different lengths for different wearer heights.

Height code (cm)Approx. wearer height (ft/in)
1504 ft 11 in
1605 ft 3 in
1705 ft 7 in
1805 ft 11 in
1906 ft 3 in
2006 ft 7 in

Feet/inches are rounded to the nearest inch. These are label height codes, not fixed height ranges. Check both your height and chest against the selected garment, and follow its fit notes.

Example: 160/96 and 170/96 both indicate a 96 cm (37.8 in) wearer chest — approximately Medium in this guide. The 160/96 is for a 160 cm wearer (about 5 ft 3 in); the 170/96 is for a 170 cm wearer (about 5 ft 7 in).

Reading a military size: On an upper-body label such as 190/110, 190 is wearer height in centimetres (about 6 ft 3 in) and 110 is wearer chest circumference (43.3 in; approximately Large in this guide). For garment measurements, pit-to-pit is the flat width across the chest; twice that width gives the garment circumference, not the wearer’s chest size.

View the full UK/US Sizing Guide

Combat Trousers / Pants Sizing Guide

Measure around your natural waist while wearing light clothing. These are wearer body measurements, not the garment’s flat width. Letter sizes are approximate MPO equivalents; use the original military size, leg measurement and product fit notes first. Inch values are converted from centimetres and rounded to one decimal place. If your measurement falls between the listed ranges, check the product’s exact size and fit notes.

Approx. sizeWaist (in)Waist (cm)
Small29.9–32.776–83
Medium33.1–35.884–91
Large36.2–39.092–99
X-Large39.4–42.1100–107
2X-Large42.5–45.3108–115
3X-Large45.7–48.4116–123

Check the leg length as well as the waist. Where a military label has several numbers, follow the measurement order explained on the individual product. A laid-flat waist measurement is garment width; doubling it gives garment circumference, not the wearer’s waist size.

View the full UK/US Sizing Guide

Condition

What to Expect

New

Brand-new commercial outdoor gear, accessories or equipment that has not been previously owned or used. It may arrive in the manufacturer’s original packaging, but packaging is not guaranteed. New products are not military surplus and are therefore not assigned a surplus grade.

Grade 1 - Excellent

Good used service condition. Fully serviceable with light-to-moderate signs of use.

Grade 2 - Good

Serviceable used condition with more obvious wear, fading, markings, repairs or cosmetic imperfections.

Grade 3 - Fair / Serviceable

Heavily used but still serviceable for its stated purpose. Significant wear, repairs, fading or cosmetic defects should be expected and clearly described.

Please note: “New” refers to brand-new commercial products and is separate from our military-surplus grading system. Grades 1–3 apply only to genuine military surplus. Surplus items may vary in appearance due to previous issue, use or storage, and significant condition issues will be disclosed in the product description. For full details, view our Product Condition Guide.