Gregory Mountain Nano 18 Backpack vs Patagonia Ascensionist Pack 55L Backpack

The main difference between the Gregory Mountain Mountain Nano 18 Backpack and the Patagonia Ascensionist Pack 55L Backpack is that the Mountain Nano 18 Backpack has Side Pockets (Side pockets can fit water bottle and other accessories) while the Ascensionist Pack 55L Backpack does not.

Gregory Mountain Products Nano 18 Everyday Outdoor Backpack Front View
Patagonia Ascensionist Pack 55L Backpack - Front View
Specs Brand Gregory Mountain Patagonia
Name Mountain Nano 18 Backpack Ascensionist Pack 55L Backpack
Category Backpacking Backpacking
Sub Category Hiking Hiking
Capacity (L) 18L 55L
Dimensions (in) 18.8 x 11.4 x 1.9 26 x 12.5 x 7.5
Weight (lb) 1.0 2lbs 13.2oz
Fabric Nylon
Color 4 colors and patterns Joya Blue
Warranty The Gregory Limited Lifetime Warranty
Release Date July 16, 2020
Rating 4.5
Price Under $75 Under $250
General Features Shoulder Straps Air mesh padded shoulder straps Straight - adjustable padded strap
Sternum / Chest Straps Sternum strap Adjustable chest strap
Hip Belt / Waist Strap Removable hip belt Adjustable waist strap
Zippers Nylon zipper with string pulls
Main Compartment Access Normal zipped access Dual spindrift access
External Pockets 1 zipped front pockets and 2 side pockets 1 top/flap zip pocket,
Internal Compartments Stash Pocket
Side Pockets Side pockets can fit water bottle and other accessories
Water Bottle Yes
Handles Top grab handle
Loops and Attachments Adjustable ice-axe carry, Removable compression straps, Three-point, over-the-top rope-carrying system
Hiking / Backpacking Features Back Panel Padded back panel Padded
Hydration Features Hydration Compatible Yes

You're currently comparing the Mountain Nano 18 Backpack by Gregory Mountain against the Ascensionist Pack 55L Backpack by Patagonia.


Gregory Mountain 's Mountain Nano 18 Backpack is a Backpacking backpack with Hiking features while Patagonia's Ascensionist Pack 55L Backpack is a Backpacking backpack with Hiking features.

The Gregory Mountain Mountain Nano 18 Backpack has a capacity of 18L (liters), weighs 1.0 pounds and it's dimensions in inches are 18.8 x 11.4 x 1.9. It's made of Nylon and is available in 4 colors and patterns in comparison the Patagonia Ascensionist Pack 55L Backpack's capacity is 55L with a size of 26 x 12.5 x 7.5 inches. Constructed from it weighs 2lbs 13.2oz pounds and is available in Joya Blue.