The main difference between the Osprey Rook 65 Men's Backpacking Backpack and the Gregory Mountain Men's Inertia 20 H2O Day Hiking Backpack is that the Rook 65 Men's Backpacking Backpack has Loops and Attachments (Cord loop attachment points, loops to anchor an optional Osprey Daylite® daypack, sleeping pad straps ) while the Men's Inertia 20 H2O Day Hiking Backpack does not.
Specs | Brand | Osprey | Gregory Mountain |
Name | Rook 65 Men's Backpacking Backpack | Men's Inertia 20 H2O Day Hiking Backpack | |
Category | Backpacking | Mens | |
Sub Category | Mens | Backpacking | |
Capacity (L) | 65L | 20L | |
Dimensions (in) | 29.1 x 16.3 x 14.2 | 20.08 x 10.83 x 3.15 | |
Weight (lb) | 3.5 | 1.9 | |
Fabric | 600D Polyester | 100% Nylon | |
Color | 3 colors and patterns | 2 colors and patterns | |
Warranty | Osprey Lifetime Warranty | The Gregory Limited Lifetime Warranty | |
Release Date | February 2, 2019 | November 9, 2017 | |
Rating | 4.8 | 4.8 | |
Price | Under $175 | Under $75 | |
General Features | Shoulder Straps | Soft edgeless padded mesh shoulder straps | Die-cut shoulder harness |
Sternum / Chest Straps | Adjustable sternum strap with rescue whistle | Sternum and chest strap | |
Hip Belt / Waist Strap | Padded hipbelt | 3D comfort cradle hipbelt | |
Zippers | ComfortGrip custom molded loop zipper pullers | ||
Main Compartment Access | Top access with lid | Normal zipped access | |
External Pockets | Zippered hipbelt pockets, zippered sleeping bag compartment with floating divider, zippered hipbelt pockets, and 2 side pockets | 5 external pockets | |
Side Pockets | Side pockets can fit water bottle and other gears | Side pockets can fit water bottle and other accessories | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | Cord loop attachment points, loops to anchor an optional Osprey Daylite® daypack, sleeping pad straps | ||
Travel Features | Compression Straps | External compression straps | |
Base / Bottom | Dual layer bottom panel | ||
Hiking / Backpacking Features | Back Panel | AirSpeed backpanel | 3D foam breathable backpanel |
Rain Cover | Integrated removable raincover | ||
Internal / External Frame | Internal 4 mm LightWire peripheral frame | ||
Adjustable Length Torso | Intuitive torso adjustment system | ||
Hip Belt Pockets | Yes | ||
Top / Floating Lid | Fixed top lid with zippered pocket | ||
Trekking Pole Holders | Yes | ||
Hydration Features | Bladder Size | 3 Liter 3D hydro reservoir | |
Replaceable Bladder | Yes | ||
Hydration Compatible | Yes | Yes |
Osprey 's Rook 65 Men's Backpacking Backpack is a Backpacking backpack with Mens features while Gregory Mountain 's Men's Inertia 20 H2O Day Hiking Backpack is a Mens backpack with Backpacking features.
The Osprey Rook 65 Men's Backpacking Backpack has a capacity of 65L (liters), weighs 3.5 pounds and it's dimensions in inches are 29.1 x 16.3 x 14.2. It's made of 600D Polyester 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.
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