Thule Stir Alpine 40L Backpack vs Extremus Ski Boot Backpack

The main difference between the Thule Stir Alpine 40L Backpack and the Extremus Ski Boot Backpack is that the Stir Alpine 40L Backpack has Hip Belt / Waist Strap (Hip belt with gear loops) while the Ski Boot Backpack does not.

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

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


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

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