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Double D 45L | Tactical backpack | 3L Hydration bladder

The Double D 45L Hydration tactical backpack offers smart and simple compartments, the unique transporter flap with two vertical front-pouches plus straps and MOLLE webbing to attach a helmet, tools and wet or dirty gear to the outside of the pack. The Double D is designed for ballistic vest integration. High-quality materials ensure the protection of the gear stored and durability against tear, abrasion, and rough usage while keeping the backpack as light as possible. The WLPS Low Profile 3L bladder is included.




  • Care-Free™

    SOURCE’s technologies combined represent the next generation in hydration systems, in which cleaning is no longer an issue. Our systems require the lowest maintenance on the market. More about our Source Hydration Technology

  • Glass-Like™

    A multi-layer Polyethylene film utilizing SOURCE’s Glass-Like™ technology, which prevents bio-film build up making the system self-cleaning. SOURCE’s Glass-Like™ Film is 2000% smoother than standard TPU films, with virtually no difference from glass itself. More about our Source Hydration Technology

  • Grunge Guard™

    An FDA approved and EPA registered antibacterial permanently embedded into the reservoir and tube to block bacteria growth. Effective for the life of the system. This protection has no effect on the water and is non-leaching. More about our Source Hydration Technology

  • Taste-Free™

    Our co-extruded PE film retains the pure taste with absolutely no plastic flavor, also over time. (BPA and Phthalate free.)

GTIN: 616223000200
SKU: DoubleD
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Ensuring the soldier’s agility and mobility with features like the contoured shoulder straps, rotating boomerang-shaped hip belt for easy body armor integration, compression straps, angled top lid to ensure free head movement also when operating in prone firing position. For pack stability and enhanced load-bearing performance, the Double D features a Suspension System with “T” formed aluminum bars.


  • 38L main compartment with zippered inside pocket
  • Generous top lid compartment for quick over-arm access to small essentials while on the move
  • Internal water reservoir compartment for 3L blatter with tube routing over the right shoulder
  • Two 3L expandable front vertical pockets in the transporter flap
  • Wand side pockets for use together with compression straps to hold long items


  • Includes 3L WLPS™ Low Profile hydration bladder with tough 3 layer construction with Glass-like™; Taste-Free™ Grunge-Guard™ antimicrobial; leak-proof wideslide opening; external fill port; self-sealing SQC™ connecting the bladder to the tube and QMT™ at tube tip- Quick connect hose fitting offers push-button convenience, QMT™ has a built-in shut off mechanism which allows UTA™ or valves to be disconnected without spilling.
  • Radio carrier compatible: equipped with two 25mm buckles for mounting a radio holder carrier with an additional horizontal compression strap to stabilize the radio
  • Radio and antenna slots for easy antenna routing with an additional slot for cable routing
  • Transporter Flap for external storage of helmet, jacket, etc.
  • Angled top lid with a 45-degree angle enables free head movement, especially while operating in the prone firing position
  • The “boomerang” shaped removable Hip Belt with MOLLE webbing and Suspension System with T-formed aluminum bars allows for easy body armor integration without interference with body movement while keeping the backpack close to the back of the user
  • 3D mesh on back and shoulder straps for enhanced ventilation and heat transfer
  • Contoured shoulder straps pivot and adapt to shoulder width, also when worn with vest, armor or jacket
  • D-Loops on the shoulder straps for the attachment of smaller items
  • Zipper Pulls on all zippers for easy handling in the dark or when using gloves
  • Adjustable reinforced sternum strap prevents shoulder straps from digging into armpits and evens load distribution
  • Inside straps and D-Loops keep equipment in place
  • Side straps keep gear stable and close to the center of gravity
  • Top stabilizers keep the load stable and close to the back
  • Top-load and front access to cargo for top or suitcase-style loading or suitcase-style packing/unpacking
  • Top pouch with internal organizers for admin items (pens, notebook)
  • 3 rows of MOLLE webbing on the front of the backpack
  • 6 rows of MOLLE webbing on the sides of the backpack
  • Elastic retention loops keep loose strap-ends from dangling

Additional information

Weight 1.85 kg
Dimensions 36 × 25 × 60 cm

Black, Coyote, Olive

Cargo Load Capacity

45 Liter

Reservoir Capacity

3 Liter

Drinking Tube Length

94 cm / 37 in

Drinking Valve

Storm Push-Pull Valve


Exterior Fabric

Cordura 500, Cordura 1000, PES mesh, Air Mesh+

Liner Fabric

Nylon 210, Nylon 420


EVA foam, PE Foam

Adjusting Straps

Heavy Duty PP





Hip Belt Included