The main difference between the Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack and the Gregory Mountain Men's Optic 48 Ultralight Backpack is that the Men's Inertia 20 H2O Day Hiking Backpack has Base / Bottom (Dual layer bottom panel) while the Men's Optic 48 Ultralight Backpack does not.
Specs | Brand | Gregory Mountain | Gregory Mountain |
Name | Men's Inertia 20 H2O Day Hiking Backpack | Men's Optic 48 Ultralight Backpack | |
Category | Mens | Mens | |
Sub Category | Backpacking | Backpacking | |
Capacity (L) | 20L | 48L | |
Dimensions (in) | 20.08 x 10.83 x 3.15 | 26 x 14 x 4.5 | |
Weight (lb) | 1.9 | 2.4 | |
Fabric | 100% 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 | 4.8 | 4.6 | |
Price | Under $75 | Under $250 | |
General Features | Shoulder Straps | Die-cut shoulder harness | Men's specific die-cut shoulder harness |
Sternum / Chest Straps | Sternum and chest strap | Sternum 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 | Normal zipped access | U-zip main opening or full body front access | |
External Pockets | 5 external pockets | 3 external pockets including weather shield hip belt pocket | |
Side Pockets | Side pockets can fit water bottle and other accessories | 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 | ||
Travel Features | Compression Straps | External compression straps | |
Rear Loading Straps | Yes | ||
Base / Bottom | Dual layer bottom panel | ||
Hiking / Backpacking Features | Back Panel | 3D foam breathable backpanel | Ventilated back panel |
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 Inertia 20 H2O Day Hiking Backpack is a Mens backpack with Backpacking features while Gregory Mountain 's Men's Optic 48 Ultralight Backpack is a Mens backpack with Backpacking features.
The Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack has a capacity of 20L (liters), weighs 1.9 pounds and it's dimensions in inches are 20.08 x 10.83 x 3.15. It's made of 100% Nylon and is available in 2 colors and patterns in comparison the Gregory Mountain Men's Optic 48 Ultralight Backpack's capacity is 48L with a size of 26 x 14 x 4.5 inches. Constructed from Nylon it weighs 2.4 pounds and is available in 2 colors and patterns.
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