Columbia Tandem Trail 16L Backpack vs Columbia Unisex Atlas Explorer 25L Backpack

The main difference between the Columbia Tandem Trail 16L Backpack and the Columbia Unisex Atlas Explorer 25L Backpack is that the Tandem Trail 16L Backpack has Sternum / Chest Straps (Adjustable sternum strap) while the Unisex Atlas Explorer 25L Backpack does not.

Columbia Tandem Trail 16L Backpack - Front View
Columbia Unisex Atlas Explorer 25L Backpack Front view
Specs Brand Columbia Columbia
Name Tandem Trail 16L Backpack Unisex Atlas Explorer 25L Backpack
Category Hiking Laptop
Sub Category Hydration Everyday
Capacity (L) 16L 25L
Dimensions (in) 17.7 x 10.4 x 5.7 20.24 x 14.72 x 3.35
Weight (lb) 0.66 1.0
Fabric 100% Nylon 100% Polyester with PU coating
Color Black Fallgrass/Black 4 Colors and patterns
Warranty Columbia Limited Lifetime Warranty
Rating 4.2 4.3
Price Under $75 Under $100
General Features Shoulder Straps Lightweight and breathable shoulder straps Contoured padded shoulder straps
Sternum / Chest Straps Adjustable sternum strap
Zippers Nylon with reflective zipper pulls Reflective zipper pulls
Main Compartment Access Normal top zipped access Normal zipped access
External Pockets Two water bottle pockets 2 side pocket
Internal Compartments Laptop mesh sleeve
Side Pockets Side pockets can fit water bottle
Water Bottle Yes Yes
Handles Top grab handle Top haul handle
Loops and Attachments Elastic cord and key clip
Lightweight Ultralight construction
Business & School Features Laptop Sleeve Padded Laptop sleeve fits laptop up to 15"
Organizer Pocket Front organizer pocket
Travel Features Base / Bottom Flat padded bottom panel
Hiking / Backpacking Features Back Panel Padded and quilted backpanel
Trekking Pole Holders Trekking pole attachments
Gym / Sports Features Laundry Pocket External bungee straps
Other Features Other Features Hydration compatible, Versatile and customizable Twin Slot webbing

You're currently comparing the Tandem Trail 16L Backpack by Columbia against the Unisex Atlas Explorer 25L Backpack by Columbia.


Columbia's Tandem Trail 16L Backpack is a Hiking backpack with Hydration features while Columbia's Unisex Atlas Explorer 25L Backpack is a Laptop backpack with Everyday features.

The Columbia Tandem Trail 16L Backpack has a capacity of 16L (liters), weighs 0.66 pounds and it's dimensions in inches are 17.7 x 10.4 x 5.7. It's made of 100% Nylon and is available in Black Fallgrass/Black in comparison the Columbia Unisex Atlas Explorer 25L Backpack's capacity is 25L with a size of 20.24 x 14.72 x 3.35 inches. Constructed from 100% Polyester with PU coating it weighs 1.0 pounds and is available in 4 Colors and patterns.