TETON Sports Mountain Adventurer 4000 Backpack vs Gregory Mountain Nano 18 Backpack

The main difference between the TETON Sports Mountain Adventurer 4000 Backpack and the Gregory Mountain Mountain Nano 18 Backpack is that the Mountain Adventurer 4000 Backpack has Loops and Attachments (Exterior and interior gear loops) while the Mountain Nano 18 Backpack does not.

TETON Sports Mountain Adventurer 4000 Backpack Front View
Gregory Mountain Products Nano 18 Everyday Outdoor Backpack Front View
Specs Brand TETON Sports Gregory Mountain
Name Mountain Adventurer 4000 Backpack Mountain Nano 18 Backpack
Category Hiking Backpacking
Sub Category Backpacking Hiking
Capacity (L) 66L 18L
Dimensions (in) 27 x 12 x 10 18.8 x 11.4 x 1.9
Weight (lb) 5.3 1.0
Fabric 420D Black Oxford 1000mm WR Nylon
Color Black 4 colors and patterns
Warranty TETON Sports Lifetime Warranty The Gregory Limited Lifetime Warranty
Release Date September 25, 2019 July 16, 2020
Rating 4.6 4.5
Price Under $150 Under $75
General Features Shoulder Straps Ergonomic shoulder straps Air mesh padded shoulder straps
Sternum / Chest Straps Sternum strap with whistle Sternum strap
Hip Belt / Waist Strap Waist belt with split wishbone construction Removable hip belt
Main Compartment Access Top loading access Normal zipped access
External Pockets Reverse U pocket, sleeping bag compartment, waist belt pocket, and 4 side pockets 1 zipped front pockets and 2 side pockets
Side Pockets Side pockets can fit water bottle and other acccessories Side pockets can fit water bottle and other accessories
Water Bottle Yes Yes
Handles Top grab handle Top grab handle
Loops and Attachments Exterior and interior gear loops
Travel Features Compression Straps External compression straps
Rear Loading Straps Yes
Hiking / Backpacking Features Back Panel Padded back panel Padded back panel
Load Lifters Yes
Internal / External Frame Internal frame
Adjustable Length Torso Adjustable 15-20" torso length
Hip Belt Pockets Yes
Top / Floating Lid Removeable hood
Hydration Features Bladder Size Holds 3L hydration bladder
Hydration Compatible Yes Yes

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


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

The TETON Sports Mountain Adventurer 4000 Backpack has a capacity of 66L (liters), weighs 5.3 pounds and it's dimensions in inches are 27 x 12 x 10. It's made of 420D Black Oxford 1000mm WR and is available in Black 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.