The main difference between the Gregory Mountain Nano 20 Backpack and the Gregory Mountain Men's Optic 55 Ultralight Backpack is that the Nano 20 Backpack has Tablet Sleeve (Tablet sleeve fits up to 10”) while the Men's Optic 55 Ultralight Backpack does not.
Specs | Brand | Gregory Mountain | Gregory Mountain |
Name | Nano 20 Backpack | Men's Optic 55 Ultralight Backpack | |
Category | Backpacking | Mens | |
Sub Category | Hiking | Backpacking | |
Capacity (L) | 20L | 55L | |
Dimensions (in) | 19.2 x 1.7 x 1 | 23.5 x 12.6 x 4.2 | |
Weight (lb) | 1.5 | 2.4 | |
Fabric | Nylon | Nylon | |
Color | Obsidian Black | 2 colors and patterns | |
Warranty | The Gregory Limited Lifetime Warranty | The Gregory Limited Lifetime Warranty | |
Release Date | November 9, 2017 | ||
Rating | 4.0 | 4.1 | |
Price | Under $75 | Under $225 | |
General Features | Shoulder Straps | Air mesh padded shoulder straps | Padded shoulder straps |
Sternum / Chest Straps | Sternum strap | Sternum and chest strap | |
Hip Belt / Waist Strap | Removable hip belt | 3D comfort cradle hipbelt | |
Zippers | ComfortGrip custom molded loop zipper pullers | ||
Main Compartment Access | Normal zipped access | U-zip main opening or full body front access | |
External Pockets | 1 zipped front pocket and 2 side 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 | ||
Business & School Features | Tablet Sleeve | Tablet sleeve fits up to 10” | |
Travel Features | Compression Straps | External compression straps | |
Rear Loading Straps | Yes | ||
Hiking / Backpacking Features | Back Panel | Breathable back panel | Ventilated back panel |
Rain Cover | Yes | ||
Internal / External Frame | Aluminum internal frame | ||
Ventilated Back | Yes | ||
Hip Belt Pockets | Yes | ||
Top / Floating Lid | Yes | ||
Hydration Features | Hydration Compatible | Yes | Yes |
Gregory Mountain 's Nano 20 Backpack is a Backpacking backpack with Hiking features while Gregory Mountain's Men's Optic 55 Ultralight Backpack is a Mens backpack with Backpacking features.
The Gregory Mountain Nano 20 Backpack has a capacity of 20L (liters), weighs 1.5 pounds and it's dimensions in inches are 19.2 x 1.7 x 1. It's made of Nylon and is available in Obsidian 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.
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