The main difference between the Gregory Mountain Men's Optic 48 Ultralight Backpack and the Gregory Mountain Men's Optic 55 Ultralight Backpack is that the Men's Optic 48 Ultralight Backpack has Adjustable Length Torso (Yes) while the Men's Optic 55 Ultralight Backpack does not.
Specs | Brand | Gregory Mountain | Gregory Mountain |
Name | Men's Optic 48 Ultralight Backpack | Men's Optic 55 Ultralight Backpack | |
Category | Mens | Mens | |
Sub Category | Backpacking | Backpacking | |
Capacity (L) | 48L | 55L | |
Dimensions (in) | 26 x 14 x 4.5 | 23.5 x 12.6 x 4.2 | |
Weight (lb) | 2.4 | 2.4 | |
Fabric | Nylon | Nylon | |
Color | 2 colors and patterns | 2 colors and patterns | |
Warranty | The Gregory Limited Lifetime Warranty | The Gregory Limited Lifetime Warranty | |
Release Date | November 9, 2017 | November 9, 2017 | |
Rating | 4.6 | 4.1 | |
Price | Under $250 | Under $225 | |
General Features | Shoulder Straps | Men's specific die-cut shoulder harness | Padded shoulder straps |
Sternum / Chest Straps | Sternum strap | Sternum and chest strap | |
Hip Belt / Waist Strap | 3D comfort cradle hipbelt | 3D comfort cradle hipbelt | |
Zippers | ComfortGrip custom molded loop zipper pullers | ComfortGrip custom molded loop zipper pullers | |
Main Compartment Access | U-zip main opening or full body front access | U-zip main opening or full body front access | |
External Pockets | 3 external pockets including weather shield hip belt pocket | 3 external pockets including weather shield hip belt pocket | |
Side Pockets | Side pockets can hold water bottle | Side pockets can hold water bottle | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | Adjustable attachment loop and upper shock lock | Adjustable attachment loop and upper shock lock | |
Travel Features | Compression Straps | External compression straps | External compression straps |
Rear Loading Straps | Yes | Yes | |
Hiking / Backpacking Features | Back Panel | Ventilated back panel | Ventilated back panel |
Rain Cover | Yes | Yes | |
Internal / External Frame | Aluminum internal frame | Aluminum internal frame | |
Ventilated Back | Yes | Yes | |
Adjustable Length Torso | Yes | ||
Hip Belt Pockets | Yes | Yes | |
Top / Floating Lid | Yes | Yes | |
Hydration Features | Hydration Compatible | Yes | Yes |
Gregory Mountain 's Men's Optic 48 Ultralight Backpack is a Mens backpack with Backpacking features while Gregory Mountain's Men's Optic 55 Ultralight Backpack is a Mens backpack with Backpacking features.
The Gregory Mountain Men's Optic 48 Ultralight Backpack has a capacity of 48L (liters), weighs 2.4 pounds and it's dimensions in inches are 26 x 14 x 4.5. It's made of Nylon and is available in 2 colors and patterns 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.
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