58.6 oz - 1660 g Pack

The Flex PR is a multi-use pack specifically designed for pack rafters

The Flex PR is a 50L dry bag with a removable suspension system designed for carry heavy loads in comfort. Whether you are portaging on a canoe trip, hunting in the backcountry, or doing trail maintenance, the Flex PR will keep your gear dry, your accessories handy, and your back comfortable.

Size Guide
VX21 Red
Shoulder Harness
Hip Belt

  • The Flex Pack PR is designed to handle the 50L dry bag included, or the popular portage barrels. It has adjustable compression straps to help compress and stabilize any load. Dual removable side pockets are great for water bottles. Stash snacks, a rain jacket, or other gear securely in the zippered large gusseted front stash pocket.

    The removable bottom stabilizer straps are perfect for packrafters using portage barrels and help ensure heavy loads ride easily. It even has an eight-inch wide stash pocket running the length of the pocket perfect for stowing a paddle.

    Now you don’t have to suffer through carrying a load with a pack ill-designed for the job. The Flex Pack PR uses the same suspension system we use on our lightweight packs. That means it’s designed to carry heavy loads without needing a heavy pack. It’s unique oval shape and sturdy harness keep the loads closer to your center of gravity, so you don’t have to worry about a shifting pack.

    It’s simple roll top design keeps your equipment nice and dry, even in the wettest conditions. It features a release valve that allows you to remove any excess air once the bag is loaded.

    With four lashing points, the Flex PF stays secure in your boat no matter how gnarly the ride.

    We have a LIMITED run of Flex PR using a new ultra-durable X-Pac VX21 fabric by Dimension Polyant. It is a 3 layer 210 denier fabric that is water proof, robust, and incredibly abrasion resistant.

    • Adjustable Torso Length so you can find your fit whether tall or small
    • Multiple Shoulder Yoke Styles
    • Multiple Hip Belt Styles
    • 50 Liter Dry bag
    • Eight Straps for Securing your Load.
    • Minimal Contact Back Panel
    • Interior Zippered Stash Pocket
    • Rear vertical zippered Stretch Stash pocket
    • 8" wide Front pocket large enough to hold paddle blades
    • 2 Removable Side Pockets with multiple attachment options
    • Elastic Lashing Cord providing additional external lashing points
    • Multi-point Compression
    • Suspension
      Torso Sizes
      Maximum Load
      Base Weight
      Comfort FitTM
      16" - 22" | 38 - 56 cm
      Gray, Green, or Red
      45 lb - 20 kg
      20 lb - 4 kg
      Pack Rafting
      Trail Maintenance
    • Pack Body

      Body Contact
      420 Nylon robictm
      or X-Pac VX21
      3D Mesh
      4 Way stretch
    • Robic Body
      VX21 Body
      Shoulder Harness
      Hip Belt
      Dry Bag

      Robic Weight
      VX21 Weight
      33.9 oz - 962 g
      35.5 oz - 1007 g
      5.7 oz - 162 g
      11 oz - 312 g
      8 oz - 220 g

      58.6 oz - 1660 g
      60.2 oz - 1706 g

    The Trek: Six Moon Designs Flex Pack PR Review