Columbia Unisex Atlas Explorer 25L Backpack vs Columbia Trek™ 24L Backpack

The main difference between the Columbia Unisex Atlas Explorer 25L Backpack and the Columbia Trek™ 24L Backpack is that the Unisex Atlas Explorer 25L Backpack has Loops and Attachments (Elastic cord and key clip) while the Trek™ 24L Backpack does not.

Columbia Unisex Atlas Explorer 25L Backpack Front view
Columbia Trek™ 24L Backpack - Front View
Specs Brand Columbia Columbia
Name Unisex Atlas Explorer 25L Backpack Trek™ 24L Backpack
Category Laptop Commuter
Sub Category Everyday Daypack
Capacity (L) 25L 24L
Dimensions (in) 20.24 x 14.72 x 3.35 5.5 x 11.8 x 16.5
Weight (lb) 1.0 0.8lb 1oz
Fabric 100% Polyester with PU coating 100% Polyester
Color 4 Colors and patterns Peach Blossom/Dark Coral
Warranty Columbia Limited Lifetime Warranty
Rating 4.3
Price Under $100 Under $100
General Features Shoulder Straps Contoured padded shoulder straps Straight - adjustable padded strap
Zippers Reflective zipper pulls Nylon zipper with string pulls
Main Compartment Access Normal zipped access Normal top two way zip access
External Pockets 2 side pocket 1 front zippered pocket
Internal Compartments Water bottle pocket
Side Pockets Side pockets can fit water bottle 1 side slip in pocket
Water Bottle Yes Yes
Handles Top haul handle Two webbing top handles
Loops and Attachments Elastic cord and key clip
Business & School Features Laptop Sleeve Laptop sleeve fits laptop up to 15" Padded; can accommodate most computers up to 15"
Organizer Pocket Front organizer pocket
Travel Features Base / Bottom Flat padded bottom panel
Hiking / Backpacking Features Back Panel Padded
Gym / Sports Features Laundry Pocket External bungee straps

You're currently comparing the Unisex Atlas Explorer 25L Backpack by Columbia against the Trek™ 24L Backpack by Columbia.


Columbia's Unisex Atlas Explorer 25L Backpack is a Laptop backpack with Everyday features while Columbia's Trek™ 24L Backpack is a Commuter backpack with Daypack features.

The Columbia Unisex Atlas Explorer 25L Backpack has a capacity of 25L (liters), weighs 1.0 pounds and it's dimensions in inches are 20.24 x 14.72 x 3.35. It's made of 100% Polyester with PU coating and is available in 4 Colors and patterns in comparison the Columbia Trek™ 24L Backpack's capacity is 24L with a size of 5.5 x 11.8 x 16.5 inches. Constructed from 100% Polyester it weighs 0.8lb 1oz pounds and is available in Peach Blossom/Dark Coral.