Gregory 3D Hydro Trek Hydration Reservoir - 3 Liters

This product is not available. Good news: we have a newer version.

Shop newer version

Designed for on-trail sipping and basecamp use, the 3-liter Gregory 3D Hydro Trek hydration reservoir comes with a push-button pour spout to make filling bottles and washing hands at camp simple.

  • Features

    • Round shape is designed to fit in any multiday top-loading pack (secured by pack's drawstring closure and top compression) or in a pack's traditional hydration sleeve
    • Wide body shape keeps the weight distribution high and tight on your body when the reservoir is secured in the top position by your pack's drawstring closure and top
    • Stowing your reservoir up top also allows quick access for mid-hike refilling
    • When you settle down in camp, hang the reservoir up with the included hanger and use the push-button pour spout to quickly and easily fill up water bottles and pots
    • Molded dustcover protects the basecamp pour spout from dirt and grime and provides worry-free storage while on the trail
    • Soft-molded 3D reservoir design prevents contact between top and bottom layers when hanging open, dramatically speeding drying time and discouraging bacteria growth
    • Molded hanger loop with an included reflective webbing strap makes it easy to set up a convenient camp water station and to hang dry an empty reservoir
    • Integrated 90° quick-disconnect fitting makes for easy refills without having to unthread the hose from the shoulder harness
    • Soft-molded handle on the spine makes filling easy, and the co-molded baseplate provides full-length support for hassle-free insertion and removal from the pack
    • Rubberized fill port for easy opening and filling; compatible with 38 mm pump filters
    • Push-button on/off bite valve allows for confident, leak-free storage while traveling to and from the trail (magnet accessory included)
    • Compatible with 3D Hydro-enabled packs featuring the SpeedClip hydration mounting system for crossover use
    • One-handed SpeedClip lock-and-go linkage system can be used with most full-size daypacks
    • Closeout


    View all Gregory Reservoirs
  • Technical Specs

    Best Use


    Liquid Capacity (L)

    3 liters

    Liquid Capacity (fl. oz.)

    100 fluid ounces

    Bite Valve Shut-off Switch


    Wide-Mouth Opening


    Quick Disconnect Tubing



    Metallocene polyethylene film


    12 x 9 x 3 inches

    BPA Free



    7 ounces


    Contains recycled materials

  • Reviews
    0 reviews

    Loading Reviews...
  • Questions & Answers

    Loading Questions...