Osprey Atmos AG 50 Mens Backpacking Backpack vs Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack

The main difference between the Osprey Atmos AG 50 Mens Backpacking Backpack and the Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack is that the Atmos AG 50 Mens Backpacking Backpack has Loops and Attachments (Web attachment points, dual ice tool loops, Stow-on-the-Go trekking pole attachment, integrated FlapJacket) while the Men's Inertia 20 H2O Day Hiking Backpack does not.

Osprey Atmos AG 50 Mens Backpacking Backpack Front View
Gregory Mountain Products Men's Inertia 20 H2O Day Hiking Backpack Front View
Specs Brand Osprey Gregory Mountain
Name Atmos AG 50 Mens Backpacking Backpack Men's Inertia 20 H2O Day Hiking Backpack
Category Mens Mens
Sub Category Backpacking Backpacking
Capacity (L) 50L 20L
Dimensions (in) 32.68 x 14.96 x 15.35 20.08 x 10.83 x 3.15
Weight (lb) 4.2 1.9
Fabric 100D X 630D Nylon Dobby 100% Nylon
Color 3 colors and patterns 2 colors and patterns
Warranty Osprey Lifetime Warranty The Gregory Limited Lifetime Warranty
Release Date August 15, 2015 November 9, 2017
Rating 4.7 4.8
Price Under $250 Under $75
General Features Shoulder Straps Adjustable shoulder straps Die-cut shoulder harness
Sternum / Chest Straps Sternum strap with integrated safety whistle Sternum and chest strap
Hip Belt / Waist Strap Fit-on-the-Fly hipbelt with pockets 3D comfort cradle hipbelt
Zippers ComfortGrip custom molded loop zipper pullers
Main Compartment Access Top loading access Normal zipped access
External Pockets Front stretch mesh pocket and 2 stretch mesh side pockets 5 external pockets
Side Pockets Side pockets can fit 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 Web attachment points, dual ice tool loops, Stow-on-the-Go trekking pole attachment, integrated FlapJacket
Travel Features Compression Straps External compression straps
Stowable Straps Removable sleeping pad straps
Base / Bottom Dual layer bottom panel
Hiking / Backpacking Features Back Panel Innovative AntiGravity suspension 3D foam breathable backpanel
Internal / External Frame LightWire-tensioned, full peripheral frame comfortably transfers pack load
Ventilated Back Yes
Hip Belt Pockets Yes Yes
Top / Floating Lid Yes
Trekking Pole Holders Yes Yes
Hydration Features Bladder Size Holds 3L hydration reservoir 3 Liter 3D hydro reservoir
Replaceable Bladder Yes
Hydration Compatible Yes Yes

You're currently comparing the Atmos AG 50 Mens Backpacking Backpack by Osprey against the Men's Inertia 20 H2O Day Hiking Backpack by Gregory Mountain .


Osprey 's Atmos AG 50 Mens Backpacking 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 Osprey Atmos AG 50 Mens Backpacking Backpack has a capacity of 50L (liters), weighs 4.2 pounds and it's dimensions in inches are 32.68 x 14.96 x 15.35. It's made of 100D X 630D Nylon Dobby and is available in 3 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.