The main difference between the Gregory Mountain Men's Optic 55 Ultralight Backpack and the Osprey Kestrel 68 Men's Backpacking Backpack is that the Men's Optic 55 Ultralight Backpack has Zippers (ComfortGrip custom molded loop zipper pullers) while the Kestrel 68 Men's Backpacking Backpack does not.
Specs | Brand | Gregory Mountain | Osprey |
Name | Men's Optic 55 Ultralight Backpack | Kestrel 68 Men's Backpacking Backpack | |
Category | Mens | Backpacking | |
Sub Category | Backpacking | Mens | |
Capacity (L) | 55L | 68L | |
Dimensions (in) | 23.5 x 12.6 x 4.2 | 30.7H x 14.6 x 14.6 | |
Weight (lb) | 2.4 | 3.9 | |
Fabric | Nylon | 210D x 630D Nylon Dobby | |
Color | 2 colors and patterns | Black | |
Warranty | The Gregory Limited Lifetime Warranty | Osprey Lifetime Warranty | |
Release Date | November 9, 2017 | ||
Rating | 4.1 | 4.6 | |
Price | Under $225 | $250 | |
General Features | Shoulder Straps | Padded shoulder straps | Soft edgeless padded mesh shoulder straps |
Sternum / Chest Straps | Sternum and chest strap | Adjustable sternum strap with rescue whistle | |
Hip Belt / Waist Strap | 3D comfort cradle hipbelt | Padded hipbelt | |
Zippers | ComfortGrip custom molded loop zipper pullers | ||
Main Compartment Access | U-zip main opening or full body front access | Large front panel dual U-zip access | |
External Pockets | 3 external pockets including weather shield hip belt pocket | Front panel hybrid shove-it pocket, Zippered sleeping bag compartment with floating divider, zippered hipbelt pockets, and 2 side pockets | |
Side Pockets | Side pockets can hold water bottle | Side pockets can fit water bottle and other gears | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | ||
Loops and Attachments | Adjustable attachment loop and upper shock lock | Daisy chains, ice tool and trekking pole attachments | |
Travel Features | Compression Straps | External compression straps | External compression straps |
Rear Loading Straps | Yes | ||
Hiking / Backpacking Features | Back Panel | Ventilated back panel | Breathable AirScape ridged foam backpanel |
Rain Cover | Yes | Integrated removable raincover | |
Internal / External Frame | Aluminum internal frame | Internal 3.5 mm LightWire peripheral frame | |
Ventilated Back | Yes | ||
Adjustable Length Torso | Adjustable torso length | ||
Hip Belt Pockets | Yes | ||
Top / Floating Lid | Yes | Floating top lid with external zippered pocket and under lid zippered mesh pocket | |
Trekking Pole Holders | Stow-on-the-Go trekking pole attachment | ||
Hydration Features | Hydration Compatible | Yes | Yes |
Gregory Mountain's Men's Optic 55 Ultralight Backpack is a Mens backpack with Backpacking features while Osprey 's Kestrel 68 Men's Backpacking Backpack is a Backpacking backpack with Mens features.
The Gregory Mountain Men's Optic 55 Ultralight Backpack has a capacity of 55L (liters), weighs 2.4 pounds and it's dimensions in inches are 23.5 x 12.6 x 4.2 . It's made of Nylon and is available in 2 colors and patterns in comparison the Osprey Kestrel 68 Men's Backpacking Backpack 's capacity is 68L with a size of 30.7H x 14.6 x 14.6 inches. Constructed from 210D x 630D Nylon Dobby it weighs 3.9 pounds and is available in Black.
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