Product Details

The HPRC 3500 Backpack is an injection-molded backpack that is watertight, airtight and virtually crushproof. It is made of TTX01 polypropylene plastic resin with a micro-textured surface to reduce scratching. It can be customizable with a cubed foam,  with an interior nylon bag or can be purchased empty.

The ergonomic back pad is made of fast drying antibacterial foam and was designed to be thicker in critical areas such as the shoulder blades and lumbar to provide the precise level of required support and protection. The adjustable shoulder and side straps are made of soft air mesh to allow for comfort and quick moisture evaporation. Four extra strong side loops have been molded in for attaching future accessories such as a jacket and helmet net as well as a tripod holder.

Pack Basics

  • Injection molded shell made of advanced patented plastic, TTX01 polypropylene-resin, for up to 20% lighter weight
  • Micro-textured surface to reduce scratching
  • Neoprene O-ring to keep the case air and watertight
  • Air pressure release valve included
  • Double-hinge locking latches for secure close and comfort open
  • Four extra strong side loops have been molded in for attaching future accessories such as a jacket and helmet net as well as a tripod holder


  • ATA (Air Transport Association) 300 rated
  • IP67 Military specification for protection against dust and against the effect of immersion between 15cm and 1.0 m
  • STANAG 4280 is a NATO specification for high and low temperatures for extended periods of time (up to 131° Fahrenheit for 48 hours and as low as -4.0° Fahrenheit for 16 hours)
  • DS 81-41 (military-grade)

Materials:   Made of a patented material given by a special compound based on polypropylene TTX01, glass fiber and rubber. The cases are also composed of PA66, SEBS, PA66GF30, ALU, Stainless Steel.

Available Colors:   Black
Interested in a Custom Color? Contact us for a custom quote.

Interior Dimensions:  17.05 x 12.56 x 6.65" (43.3 x 31.9 x 16.9 cm)
LID DEPTH:  2.83" (7.2 cm)

Exterior Dimensions:   19.60 x 16.98 x 7.28" (49.8 x 37 x 18.5 cm)

Weight:   6.61 lbs. (3.00 kg) Empty

Depth Rating:   3 feet for 30 minutes (IP67)

Temperature Range:   -40° F (-40 ° C) to 176° F (80 ° C)

24.24 lbs. (11 kg)

Industry Standards & Certifications:   Subjected to severe tests based on norms / national and international standards, such as for example the ATA 300, IP67, STANAG 4280, DS 81-41 FALL, IMPACT HANDLE, SEALED, UV SEAL OF MATERIAL COLOR

HPRC's Lifetime Warranty:
   HPRC products have been built to rigorous standards of quality and are guaranteed against all defects in materials and workmanship for the whole life of the case.