Extremus Ski Boot Backpack vs Thule Stir Alpine 40L Backpack

The main difference between the Extremus Ski Boot Backpack and the Thule Stir Alpine 40L Backpack is that the Ski Boot Backpack has Zippers (Upgraded SBS zipper with a loop) while the Stir Alpine 40L Backpack does not.

Extremus Ski Boot Backpack - Front View
Thule Stir Alpine 40L Backpack Front View
Specs Brand Extremus Thule
Name Ski Boot Backpack Stir Alpine 40L Backpack
Category Ski Sports
Sub Category Sports Ski
Capacity (L) 70L 40L
Dimensions (in) 13.2 x 13' x 20 11.42 x 10.24 x 22.83
Weight (lb) 2.8 2.9
Fabric Nylon Coated 210D Robic, 70D Nylon
Color Grey Obsidian
Warranty Thule Guarantee
Release Date May 30, 2022 January 6, 2021
Rating 4.3 4.8
Price Under $100 Under $200
General Features Shoulder Straps Straight - sponge-padded shoulders Padded shoulder straps with stretch pocket for snack
Sternum / Chest Straps Adjustable chest strap Sternum strap with whistle buckle
Hip Belt / Waist Strap Hip belt with gear loops
Water Proof / Water Resistant 99.99% waterproof Ultra durable material withstands weather and abrasion
Zippers Upgraded SBS zipper with a loop
Main Compartment Access Two-way top access double-zipper Top loading and side zipped access
External Pockets 1 front zip pocket, 2 side zip pockets, 2 top zip pockets Top floating pocket
Internal Compartments 1 front zip pocket Internal zippered mesh pockets
Side Pockets 2 side zip pockets
Handles Top grab handle Top grab handle
Loops and Attachments Reflective straps External gear attachment system for skis, helmet, ice axe and more
Travel Features Compression Straps External compression straps
Stowable Straps Removable lid, frame sheet, hip belt padding and sternum strap
Hiking / Backpacking Features Back Panel Cushioned back panel Breathable back panel
Load Lifters Yes
Top / Floating Lid Yes
Hydration Features Hydration Compatible Yes

You're currently comparing the Ski Boot Backpack by Extremus against the Stir Alpine 40L Backpack by Thule .


Extremus 's Ski Boot Backpack is a Ski backpack with Sports features while Thule 's Stir Alpine 40L Backpack is a Sports backpack with Ski features.

The Extremus Ski Boot Backpack has a capacity of 70L (liters), weighs 2.8 pounds and it's dimensions in inches are 13.2 x 13' x 20. It's made of Nylon and is available in Grey in comparison the Thule Stir Alpine 40L Backpack's capacity is 40L with a size of 11.42 x 10.24 x 22.83 inches. Constructed from Coated 210D Robic, 70D Nylon it weighs 2.9 pounds and is available in Obsidian.