Camelbak ThermoBak Hydration Pack, 2L, Black (Old Gens)

(Description copied from archived official webstore, 1998 ver.)

Been there, done that. This product needs no introduction. the old Thermo just got better! We have 70 oz. which equals 2 plus litres, extra wicking mesh to keep your back dry and heavy duty Monster Flow tubing. We gave you just what you were asking for!

Approx. Dimensions: 6-1/2″ x 1″ x 17-1/2″

Weight Capacity: Empty Reservoir: 8 oz, Filled Reservoir: 5.1 lbs.


(Description copied from archived official webstore, 2001 ver.)

Every military branch depends on CamelBak’s 2-liter ThermoBak to stay hydrated on the go. It moves as easily as you do thanks to a comfortable ergonomic harness and low-profile design. And with 2 liters of cool water waiting, you’ll be able to push further than ever before.


  • New 1000D Cordura® shell and heavy-duty, double-stitched construction.
  • Detachable tube for easier cleaning and custom sizing.
  • D-rings keeps tube close by.
  • Sternum strap.

Features for 2001

  • Exterior fillport with ergonomic handle for filling on the go.
  • Closed cell insulation and neoprene tube cover keeps water cool for hours.
  • HydroLock valve securely shuts off water flow.
  • Quick-release shoulder straps so that unit slips easily into larger ruck.


  • Capacity: 70 oz (2.0 liters)
  • Total Cargo: Water Only
  • Weight Empty: 9 oz (.26 kilograms)

National Stock Number

  • 8465-01-396-9917 (Black)


(Description copied from archived official webstore, 2002 ver.)

Durable and comfortable, CamelBak’s ThermoBak® 2L will be your most relied on tool in the field. In fact, this system has proven itself with every branch of the US Military. Offering 70 ounces (2 liters) of clean water on command, you’ll be able to push harder and longer. And when it is time to refill, external access keeps your downtime to a minimum.


  • Includes HydroLink™ Modular Connection System with positive shut-off HydroLock™.
  • Exterior fillport with ergonomic handle for filling on the go.
  • Quick-release shoulder straps unclip for easy removal.
  • Tough, abrasion-resistant 1000D Cordura® exterior.
  • Convenient Velcro strap management.


  • Capacity: 70 oz (2.0 l)
  • Dimensions: 18 in x 8 in x 1 in (457 mm x 203 mm x 25 mm)
  • Volume: Cargo Only – N/A • Including Water – 126 cu in (2.0 l)
  • Weight: Empty Reservoir – 0.92 lbs (0.42 kg) • Filled Reservoir – 5.30 lbs (2.40 kg)

National Stock Number

  • 8465-01-396-9917
Brand Camelbak
Item Name ThermoBak® Hydration Pack
Color Black
Part Number 20332
Date 1990s (1st pattern), 1998 (2nd pattern), 2000 (3rd pattern)
Reference Link (1997, Outdated) (2001 and later, Outdated)
1st version
2nd version
3rd version

US Army (USA) Soldiers assigned to A/Company, 1st Battalion, 17th Infantry Division attend a class on search and control of suspect techniques near the Tent City living facilities at Orote Point, Guam during Exercise TANDEM THRUST ’99.