Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L
Gregory 3D Hydro Trek 3L

Gregory 3D Hydro Trek 3L

Regular price $47.95 Sale price$35.96 Save $11.99

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


  • Unique round shape is designed to fit in any multiday top-loading pack, secured by the drawstring closure and top compression, or in a pack's traditional hydration sleeve
  • The 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 on the trail 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
  • A 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


Best UseMultisport
Liquid Capacity (L)3 liters
Liquid Capacity (fl. oz.)100 fluid ounces
Bite Valve Shut-off SwitchYes
Wide-Mouth OpeningYes
Quick Disconnect TubingYes
Material(s)Metallocene polyethylene film
Dimensions12 x 9 x 3 inches
BPA FreeYes
Weight7 ounces
SustainabilityContains recycled materials

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