Thule Vital Hydration Pack vs Thule 20L Lithos Backpack

The main difference between the Thule Vital Hydration Pack and the Thule 20L Lithos Backpack is that the Vital Hydration Pack has Sternum / Chest Straps (Sternum strap) while the 20L Lithos Backpack does not.

Thule Vital Hydration Pack Front View
Thule Lithos Backpack Front View
Specs Brand Thule Thule
Name Vital Hydration Pack 20L Lithos Backpack
Category Hydration Commuter
Sub Category Outdoor Everyday
Capacity (L) 6L 20L
Dimensions (in) 8.7 x 3.5 x 17.5 11 x 9 x 17.3
Weight (lb) 1.2 1.6
Fabric Nylon Polyester Ripstop
Color 2 colors and patterns 8 colors and patterns
Warranty Thule Guarantee Thule Guarantee
Release Date January 16, 2018 July 8, 2020
Rating 4.6 4.8
Price Under $150 Under $100
General Features Shoulder Straps Adjustable shoulder straps Adjustable padded shoulder straps
Sternum / Chest Straps Sternum strap
Main Compartment Access Normal zipped access Normal zipped access
External Pockets Zipped top pocket and 2 quick access side pockets 1 zipped front pocket and 2 side pockets
Internal Compartments Internal hydration sleeve, pump sleeves, and and zipped pocket for keys or small essentials Internal sleeves and zipped mesh pocket
Side Pockets Side pockets can fit nutrition snacks Side pockets can fit water bottle
Water Bottle No Yes
Handles Top grab handle
Loops and Attachments Light loop attachment Light lash point on front panel
Lightweight Yes
Business & School Features Laptop Sleeve Padded laptop pocket fits up to 15.6"
Tablet Sleeve Dedicated tablet pocket
Organizer Pocket Front utility pocket with organizer
Hiking / Backpacking Features Back Panel Padded back panel
Ventilated Back Ventilated back panel
Hydration Features Bladder Size Includes 2.5L Hydrapak reservoir
Hydration Compatible YEs
Other Features Other Features Retrakt magnetic hose return system

You're currently comparing the Vital Hydration Pack by Thule against the 20L Lithos Backpack by Thule .


Thule 's Vital Hydration Pack is a Hydration backpack with Outdoor features while Thule 's 20L Lithos Backpack is a Commuter backpack with Everyday features.

The Thule Vital Hydration Pack has a capacity of 6L (liters), weighs 1.2 pounds and it's dimensions in inches are 8.7 x 3.5 x 17.5 . It's made of Nylon and is available in 2 colors and patterns in comparison the Thule 20L Lithos Backpack's capacity is 20L with a size of 11 x 9 x 17.3 inches. Constructed from Polyester Ripstop it weighs 1.6 pounds and is available in 8 colors and patterns.