The main difference between the Gregory Mountain Men's Optic 48 Ultralight Backpack and the Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack is that the Men's Optic 48 Ultralight Backpack has Loops and Attachments (Adjustable attachment loop and upper shock lock) while the Men's Inertia 20 H2O Day Hiking Backpack does not.
Specs | Brand | Gregory Mountain | Gregory Mountain |
Name | Men's Optic 48 Ultralight Backpack | Men's Inertia 20 H2O Day Hiking Backpack | |
Category | Mens | Mens | |
Sub Category | Backpacking | Backpacking | |
Capacity (L) | 48L | 20L | |
Dimensions (in) | 26 x 14 x 4.5 | 20.08 x 10.83 x 3.15 | |
Weight (lb) | 2.4 | 1.9 | |
Fabric | Nylon | 100% 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 | 4.8 | |
Price | Under $250 | Under $75 | |
General Features | Shoulder Straps | Men's specific die-cut shoulder harness | Die-cut shoulder harness |
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 | Normal zipped access | |
External Pockets | 3 external pockets including weather shield hip belt pocket | 5 external pockets | |
Side Pockets | Side pockets can hold water bottle | Side pockets can fit water bottle and other accessories | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | Adjustable attachment loop and upper shock lock | ||
Travel Features | Compression Straps | External compression straps | |
Rear Loading Straps | Yes | ||
Base / Bottom | Dual layer bottom panel | ||
Hiking / Backpacking Features | Back Panel | Ventilated back panel | 3D foam breathable backpanel |
Rain Cover | Yes | ||
Internal / External Frame | Aluminum internal frame | ||
Ventilated Back | Yes | ||
Adjustable Length Torso | Yes | ||
Hip Belt Pockets | Yes | Yes | |
Top / Floating Lid | Yes | ||
Trekking Pole Holders | Yes | ||
Hydration Features | Bladder Size | 3 Liter 3D hydro reservoir | |
Replaceable Bladder | Yes | ||
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 Inertia 20 H2O Day Hiking 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 Inertia 20 H2O Day Hiking Backpack's capacity is 20L with a size of 20.08 x 10.83 x 3.15 inches. Constructed from 100% Nylon it weighs 1.9 pounds and is available in 2 colors and patterns.
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