Gregory Katmai 55 Pack - Men's

$209.93Compared to $289.95*Save 27%
*Intermediate markdowns may have been taken.
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Color: Empire Blue
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With a dynamic fit that comfortably goes the distance and plenty of volume for your gear, the men's Gregory Katmai 55 pack keeps you organized and supported on weekend and multiday treks.

Location Image of color Empire BlueLocation Image of color Empire BlueLocation Image of color Empire Blue
Location Image of color Empire Blue


  • Suspended mesh back panel with FreeFloat 3D comfort cradle in the lower back provides a dynamic fit and 360° of ventilation
  • Adjustable shoulder harness, adjustable torso length and customizable hipbelt hug the body for comfort while eliminating hot spots
  • Polygiene® Stay Fresh antimicrobial treatment keeps your pack fresh by preventing the growth of odor-causing bacteria
  • Autorotating, dual-density shoulder harness with sternum strap features an integrated safety whistle and a hydration clip
  • Perimeter alloy frame and fiberglass anti-barreling cross-stay stabilize your load
  • Made from high-density 210-denier nylon (40% recycled) and 420-denier nylon (45% recycled) with a PFC-free durable water repellent (DWR) coating
  • The recycled content of the pack helps reduce the carbon footprint by 27% compared to conventional nylon
  • Oversize front zippered compartment with mesh divider helps keep your gear organized
  • Full-length, side-loading access zipper makes unloading easy
  • Internal hydration sleeve with SpeedClip hydration hanger compatible with a Gregory 3D Hydro Trek Reservoir (reservoir not included)
  • Front oversize stretch-mesh pocket with buckle closure
  • Zippered bottom compartment with removable divider houses your sleeping bag
  • Floating top pocket includes a large zippered compartment, small quick-access pocket and an underside zippered pocket with reflective attachment points and key clip
  • Side stretch-mesh pocket features over-or-under pass-through compression to keep gear secured
  • Quick-pull drawcord closure and top compression webbing straps eliminate any shifting of items in the top of the pack
  • SideWinder bottle holder allows easy one-handed access to your water bottle and tucks away when not in use
  • Sunglass QuickStow system built into the shoulder harness for quick, secure and scratch-free access to your sunnies
  • Adjustable attachment loops and upper shock locks keep your trekking poles or ice tools secure
  • ComfortGrip molded zipper pulls with molded webbing keepers help you easily manage straps
  • Interior toggles connect a Gregory Nano 14 Daypack for any side trips you take along the way (daypack not included)


View the Gregory Katmai Product LineView all Gregory Backpacking Packs

Technical Specs

Best Use


Frame Type

Internal Frame

Gear Capacity (L)

S/M: 50 liters

M/L: 55 liters

Gear Capacity (cu. in.)

S/M: 3,051 cubic inches

M/L: 3,356 cubic inches


S/M: 4 lbs. 9.8 oz.

M/L: 4 lbs. 10.9 oz.

Adjustable Torso Length


Fits Torso Length (in.)

S/M: 15-19 inches

M/L: 18-22 inches

Fits Waist/Hips

S/M: 25-48 inches

M/L: 27-53 inches


210-denier 40% recycled nylon/420-denier 45% recycled nylon

Frame Material

Alloy steel frame/fiberglass anti-barreling cross-stay

Reservoir Compatible


Suspended Mesh Back Panel


Pack Access

Top / Bottom / Side

Number of Exterior Pockets

7 + main compartment

Sleeping Bag Compartment


Hipbelt Pockets



S/M: 29 x 17 x 13 inches

M/L: 30 x 17 x 13 inches




Contains recycled materials

13 reviews with an average rating of 4.7 out of 5 stars

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