The main difference between the TETON Sports Explorer 4000 Backpack and the Gregory Mountain Nano 20 Backpack is that the Explorer 4000 Backpack has Zippers (Weather-guard zippers) while the Nano 20 Backpack does not.
Specs | Brand | TETON Sports | Gregory Mountain |
Name | Explorer 4000 Backpack | Nano 20 Backpack | |
Category | Hiking | Backpacking | |
Sub Category | Travel | Hiking | |
Capacity (L) | 65L | 20L | |
Dimensions (in) | 32 x 18 x 12 | 19.2 x 1.7 x 1 | |
Weight (lb) | 5 | 1.5 | |
Fabric | Sturdy 600D Ripstop and Oxford Canvas Shell | Nylon | |
Color | 4 colors and patterns | Obsidian Black | |
Warranty | TETON Sports Lifetime Warranty | The Gregory Limited Lifetime Warranty | |
Release Date | May 1, 2006 | ||
Rating | 4.7 | 4.0 | |
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 pocket 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 | ||
Business & School Features | Tablet Sleeve | Tablet sleeve fits up to 10” | |
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 | Breathable 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 |
TETON Sports 's Explorer 4000 Backpack is a Hiking backpack with Travel features while Gregory Mountain 's Nano 20 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 Nano 20 Backpack's capacity is 20L with a size of 19.2 x 1.7 x 1 inches. Constructed from Nylon it weighs 1.5 pounds and is available in Obsidian Black.
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