Columbia Tandem Trail Backpack vs Columbia Unisex Trek 18L Backpack

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

Columbia Tandem Trail Backpack Front View
Columbia Unisex Trek 18L Backpack Front View
Specs Brand Columbia Columbia
Name Tandem Trail Backpack Unisex Trek 18L Backpack
Category Hiking Laptop
Sub Category Hydration Everyday
Capacity (L) 22L 18L
Dimensions (in) 10.24 x 11.42 x 19.29 5.13 x 10.6 x 15.75
Weight (lb) 1.0
Fabric 100% Nylon 100% Polyester
Color 10 Colors and patterns 2 Colors and patterns
Warranty Columbia Limited Lifetime Warranty Columbia Limited Lifetime Warranty
Rating 4.5
Price Under $75 Under $50
General Features Shoulder Straps Breathable shoulder straps Adjustable shoulder straps
Sternum / Chest Straps Adjustable sternum strap
Main Compartment Access Rolltop closure Normal zipped access
External Pockets 2 side pocket 1 front zipped pocket and 1 side pocket
Side Pockets Side pockets can fit water bottle Side pockets can fit water bottle
Water Bottle Yes Yes
Handles Top grab handle Top grab handle
Loops and Attachments Gear loops
Lightweight Yes Yes
Business & School Features Laptop Sleeve Laptop sleeve fits laptop up to 15"
Hiking / Backpacking Features Back Panel Padded quilted backpanel
Trekking Pole Holders Yes
Reflective Safety Strips Reflective safety accents
Hydration Features Hydration Compatible Yes

You're currently comparing the Tandem Trail Backpack by Columbia against the Unisex Trek 18L Backpack by Columbia.


Columbia's Tandem Trail 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 Backpack has a capacity of 22L (liters), weighs 1.0 pounds and it's dimensions in inches are 10.24 x 11.42 x 19.29. It's made of 100% Nylon and is available in 10 Colors and patterns 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.