Deuter Alproof 30 SL Backpack vs Thule Stir Alpine 40L Backpack

The main difference between the Deuter Alproof 30 SL Backpack and the Thule Stir Alpine 40L Backpack is that the Alproof 30 SL Backpack has Zippers (Nylon zipper with string pulls) while the Stir Alpine 40L Backpack does not.

Deuter Alproof 30 SL Backpack - Front View
Thule Stir Alpine 40L Backpack Front View
Specs Brand Deuter Thule
Name Alproof 30 SL Backpack Stir Alpine 40L Backpack
Category Ski Sports
Sub Category Sports Ski
Capacity (L) 30L 40L
Dimensions (in) 20.87 x 12.2 x 8.27 11.42 x 10.24 x 22.83
Weight (lb) 5.77 2.9
Fabric 420D PA TOMCOAT Coated 210D Robic, 70D Nylon
Color deepsea-black Obsidian
Warranty 2 years warranty Thule Guarantee
Release Date January 6, 2021
Rating 4.7 4.8
Price Under $1,500 Under $200
General Features Shoulder Straps Load adjustment straps Padded shoulder straps with stretch pocket for snack
Sternum / Chest Straps Adjustable sternum strap with signal whistle Sternum strap with whistle buckle
Hip Belt / Waist Strap Adjustable waist strap Hip belt with gear loops
Water Proof / Water Resistant Ultra durable material withstands weather and abrasion
Zippers Nylon zipper with string pulls
Main Compartment Access Clamshell-opening main compartment with full-length 3-way zipper Top loading and side zipped access
External Pockets 2 external pockets Top floating pocket
Internal Compartments Inside compartment Internal zippered mesh pockets
Handles Top grab handle Top grab handle
Loops and Attachments Ice Axe Attachment, helmet clips, Safety leg loop 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 Padded Breathable back panel
Load Lifters Yes
Top / Floating Lid Yes
Hydration Features Hydration Compatible Yes
Other Features Other Features Alpride E2 Airbag System

You're currently comparing the Alproof 30 SL Backpack by Deuter against the Stir Alpine 40L Backpack by Thule .


Deuter 's Alproof 30 SL Backpack is a Ski backpack with Sports features while Thule 's Stir Alpine 40L Backpack is a Sports backpack with Ski features.

The Deuter Alproof 30 SL Backpack has a capacity of 30L (liters), weighs 5.77 pounds and it's dimensions in inches are 20.87 x 12.2 x 8.27. It's made of 420D PA TOMCOAT and is available in deepsea-black 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.