Columbia Tandem Trail 16L Backpack vs Columbia Unisex Trek 18L Backpack

The main difference between the Columbia Tandem Trail 16L Backpack and the Columbia Unisex Trek 18L Backpack is that the Tandem Trail 16L Backpack has Sternum / Chest Straps (Adjustable sternum strap) while the Unisex Trek 18L Backpack does not.

Columbia Tandem Trail 16L Backpack - Front View
Columbia Unisex Trek 18L Backpack Front View
Specs Brand Columbia Columbia
Name Tandem Trail 16L Backpack Unisex Trek 18L Backpack
Category Hiking Laptop
Sub Category Hydration Everyday
Capacity (L) 16L 18L
Dimensions (in) 17.7 x 10.4 x 5.7 5.13 x 10.6 x 15.75
Weight (lb) 0.66
Fabric 100% Nylon 100% Polyester
Color Black Fallgrass/Black 2 Colors and patterns
Warranty Columbia Limited Lifetime Warranty
Rating 4.2
Price Under $75 Under $50
General Features Shoulder Straps Lightweight and breathable shoulder straps Adjustable shoulder straps
Sternum / Chest Straps Adjustable sternum strap
Zippers Nylon with reflective zipper pulls
Main Compartment Access Normal top zipped access Normal zipped access
External Pockets Two water bottle pockets 1 front zipped pocket and 1 side pocket
Internal Compartments Laptop mesh sleeve
Side Pockets Side pockets can fit water bottle
Water Bottle Yes Yes
Handles Top grab handle Top grab handle
Lightweight Ultralight construction Yes
Business & School Features Laptop Sleeve Padded Laptop sleeve fits laptop up to 15"
Hiking / Backpacking Features Back Panel Padded and quilted backpanel
Trekking Pole Holders Trekking pole attachments
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 Trek 18L Backpack by Columbia.


Columbia's Tandem Trail 16L Backpack is a Hiking backpack with Hydration features while Columbia's Unisex Trek 18L 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 Trek 18L Backpack's capacity is 18L with a size of 5.13 x 10.6 x 15.75 inches. Constructed from 100% Polyester it weighs pounds and is available in 2 Colors and patterns.