TETON Sports Explorer 4000 Backpack vs Gregory Mountain Nano 18 Backpack

The main difference between the TETON Sports Explorer 4000 Backpack and the Gregory Mountain Mountain Nano 18 Backpack is that the Explorer 4000 Backpack has Zippers (Weather-guard zippers) while the Mountain Nano 18 Backpack does not.

TETON Sports Explorer 4000 Backpack Front View
Gregory Mountain Products Nano 18 Everyday Outdoor Backpack Front View
Specs Brand TETON Sports Gregory Mountain
Name Explorer 4000 Backpack Mountain Nano 18 Backpack
Category Hiking Backpacking
Sub Category Travel Hiking
Capacity (L) 65L 18L
Dimensions (in) 32 x 18 x 12 18.8 x 11.4 x 1.9
Weight (lb) 5 1.0
Fabric Sturdy 600D Ripstop and Oxford Canvas Shell Nylon
Color 4 colors and patterns 4 colors and patterns
Warranty TETON Sports Lifetime Warranty The Gregory Limited Lifetime Warranty
Release Date May 1, 2006 July 16, 2020
Rating 4.7 4.5
Price Under $100 Under $75
General Features Shoulder Straps Contoured, adjustable, padded shoulder straps Air mesh padded shoulder straps
Sternum / Chest Straps Adjustable sternum strap Sternum strap
Hip Belt / Waist Strap Padded waist straps with wide locking hip straps Removable hip belt
Zippers Weather-guard zippers
Main Compartment Access Top access Normal zipped access
External Pockets Front mesh pocket, 1 zipped bottom pocket, and 5 side pockets 1 zipped front pockets and 2 side pockets
Side Pockets Side pockets can hold water bottle, tent poles and trekking poles Side pockets can fit water bottle and other accessories
Water Bottle Yes Yes
Handles Top grab handle Top grab handle
Loops and Attachments Gear loops, daisy chains, and D-rings
Travel Features Compression Straps Multi-directional external compression straps
Rear Loading Straps Bottom load straps
Hiking / Backpacking Features Back Panel Padded back panel with open-cell foam lumbar pad and molded channels Padded back panel
Rain Cover Rainfly included
Internal / External Frame Internal frame
Ergonomic Ergonomic design
Adjustable Length Torso Multi-position torso adjustments
Trekking Pole Holders Side pockets can hold tent poles and trekking poles
Hydration Features Bladder Size Holds up to 3L hydration bladder
Hydration Compatible Yes Yes

You're currently comparing the Explorer 4000 Backpack by TETON Sports against the Mountain Nano 18 Backpack by Gregory Mountain .


TETON Sports 's Explorer 4000 Backpack is a Hiking backpack with Travel features while Gregory Mountain 's Mountain Nano 18 Backpack is a Backpacking backpack with Hiking features.

The TETON Sports Explorer 4000 Backpack has a capacity of 65L (liters), weighs 5 pounds and it's dimensions in inches are 32 x 18 x 12. It's made of Sturdy 600D Ripstop and Oxford Canvas Shell and is available in 4 colors and patterns in comparison the Gregory Mountain Mountain Nano 18 Backpack's capacity is 18L with a size of 18.8 x 11.4 x 1.9 inches. Constructed from Nylon it weighs 1.0 pounds and is available in 4 colors and patterns.