The main difference between the Gregory Mountain Nano 20 Backpack and the Mountaintop 40L Hiking Backpack is that the Nano 20 Backpack has Hydration Compatible (Yes) while the 40L Hiking Backpack does not.
Specs | Brand | Gregory Mountain | Mountaintop |
Name | Nano 20 Backpack | 40L Hiking Backpack | |
Category | Backpacking | Hiking | |
Sub Category | Hiking | Outdoor | |
Capacity (L) | 20L | 40L | |
Dimensions (in) | 19.2 x 1.7 x 1 | 20.1 x 13.8 x 6.3 | |
Weight (lb) | 1.5 | 2.1 | |
Fabric | Nylon | Polyester | |
Color | Obsidian Black | 20+ colors and patterns | |
Warranty | The Gregory Limited Lifetime Warranty | Mountaintop Warranty | |
Release Date | August 1, 2016 | ||
Rating | 4.0 | 4.6 | |
Price | Under $75 | Under $50 | |
General Features | Shoulder Straps | Air mesh padded shoulder straps | S-curve sponge padded shoulder strap |
Sternum / Chest Straps | Sternum strap | Elastic chest strap | |
Hip Belt / Waist Strap | Removable hip belt | Adjustable waist belt | |
Water Proof / Water Resistant | Water resistant material | ||
Zippers | YKK zippers | ||
Main Compartment Access | Normal zipped access | Normal zipped access | |
External Pockets | 1 zipped front pocket and 2 side pockets | Zipped top, middle and bottom pockets plus two side pockets | |
Internal Compartments | Spacious main compartment with pockets | ||
Side Pockets | Side pockets can fit water bottle and other accessories | Side pockets can fit water bottle or umbrella | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Business & School Features | Laptop Sleeve | Laptop pocket fits up to 17" | |
Tablet Sleeve | Tablet sleeve fits up to 10” | Separate tablet pocket | |
Organizer Pocket | Front utility pocket | ||
Travel Features | Carry-on Size Compliant | 40.2 linear inches carry on size compliant | |
Compression Straps | External compression straps | ||
Hiking / Backpacking Features | Back Panel | Breathable back panel | Breathable padded back panel |
Rain Cover | Rain cover included | ||
Ventilated Back | Air diversion back system | ||
Trekking Pole Holders | Hiking pole attachment | ||
Gym / Sports Features | Shoe Compartment | Bottom compartment for shoes | |
Hydration Features | Hydration Compatible | Yes |
Gregory Mountain 's Nano 20 Backpack is a Backpacking backpack with Hiking features while Mountaintop 's 40L Hiking Backpack is a Hiking backpack with Outdoor 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 Mountaintop 40L Hiking Backpack's capacity is 40L with a size of 20.1 x 13.8 x 6.3 inches. Constructed from Polyester it weighs 2.1 pounds and is available in 20+ colors and patterns.
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