Osprey Kestrel 68 Men's Backpacking Backpack vs Gregory Mountain Men's Optic 55 Ultralight Backpack

The main difference between the Osprey Kestrel 68 Men's Backpacking Backpack and the Gregory Mountain Men's Optic 55 Ultralight Backpack is that the Kestrel 68 Men's Backpacking Backpack has Adjustable Length Torso (Adjustable torso length) while the Men's Optic 55 Ultralight Backpack does not.

Osprey Kestrel 68 Men's Backpacking Backpack Front View
Gregory Mountain Products Men's Optic 55 Ultralight Backpack Front View
Specs Brand Osprey Gregory Mountain
Name Kestrel 68 Men's Backpacking Backpack Men's Optic 55 Ultralight Backpack
Category Backpacking Mens
Sub Category Mens Backpacking
Capacity (L) 68L 55L
Dimensions (in) 30.7H x 14.6 x 14.6 23.5 x 12.6 x 4.2
Weight (lb) 3.9 2.4
Fabric 210D x 630D Nylon Dobby Nylon
Color Black 2 colors and patterns
Warranty Osprey Lifetime Warranty The Gregory Limited Lifetime Warranty
Release Date November 9, 2017
Rating 4.6 4.1
Price $250 Under $225
General Features Shoulder Straps Soft edgeless padded mesh shoulder straps Padded shoulder straps
Sternum / Chest Straps Adjustable sternum strap with rescue whistle Sternum and chest strap
Hip Belt / Waist Strap Padded hipbelt 3D comfort cradle hipbelt
Zippers ComfortGrip custom molded loop zipper pullers
Main Compartment Access Large front panel dual U-zip access U-zip main opening or full body front access
External Pockets Front panel hybrid shove-it pocket, Zippered sleeping bag compartment with floating divider, zippered hipbelt pockets, and 2 side pockets 3 external pockets including weather shield hip belt pocket
Side Pockets Side pockets can fit water bottle and other gears Side pockets can hold water bottle
Water Bottle Yes Yes
Handles Top grab handle
Loops and Attachments Daisy chains, ice tool and trekking pole attachments Adjustable attachment loop and upper shock lock
Travel Features Compression Straps External compression straps External compression straps
Rear Loading Straps Yes
Hiking / Backpacking Features Back Panel Breathable AirScape ridged foam backpanel Ventilated back panel
Rain Cover Integrated removable raincover Yes
Internal / External Frame Internal 3.5 mm LightWire peripheral frame Aluminum internal frame
Ventilated Back Yes
Adjustable Length Torso Adjustable torso length
Hip Belt Pockets Yes
Top / Floating Lid Floating top lid with external zippered pocket and under lid zippered mesh pocket Yes
Trekking Pole Holders Stow-on-the-Go trekking pole attachment
Hydration Features Hydration Compatible Yes Yes

You're currently comparing the Kestrel 68 Men's Backpacking Backpack by Osprey against the Men's Optic 55 Ultralight Backpack by Gregory Mountain.


Osprey 's Kestrel 68 Men's Backpacking Backpack is a Backpacking backpack with Mens features while Gregory Mountain's Men's Optic 55 Ultralight Backpack is a Mens backpack with Backpacking features.

The Osprey Kestrel 68 Men's Backpacking Backpack has a capacity of 68L (liters), weighs 3.9 pounds and it's dimensions in inches are 30.7H x 14.6 x 14.6. It's made of 210D x 630D Nylon Dobby and is available in Black in comparison the Gregory Mountain Men's Optic 55 Ultralight Backpack's capacity is 55L with a size of 23.5 x 12.6 x 4.2 inches. Constructed from Nylon it weighs 2.4 pounds and is available in 2 colors and patterns.