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Thule Stir Alpine 40L Backpack - Obsidian (3204502)

Thule Stir Alpine 40L Backpack - Obsidian (3204502)


Thule Stir Alpine 40L Backpack - Single



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  • Description
  • Benefits
  • Technical Info
  • Shipping Explained

Thule Stir Alpine 40L Backpack - Obsidian (3204502)

Thule Stir Alpine 40L is a streamlined backpack perfect for skiing, mountaineering and climbing.

Designed to support any adventure, this backpack features a hydration compatible design, dedicated tool garage, fast-access side zipper and much more. Several of the components are also removable to allow the backpack weight to be reduced for light and fast missions.

Designed With You In Mind

Whatever you plan on doing, you need a backpack that is fully designed for your activity – and even your own body. Thule backpacking and hiking backpacks are custom-fit to suit male or female frames as well as adjustable for different torso lengths. They’re also built to place the load where it’s most comfortable and let you walk naturally to ensure you’re free to get the most out of your day.

Tested by People, Machines, and Mother Nature

Thule backpacks been tested to the limit for safety and resistance to wear and tear from heavy-duty activity and tough weather. They’ve also been tested exhaustively for comfort and ease of use so you are free to enjoy your passion. 


  • Attach a climbing rope or jacket with the underlid compression strap
  • Securely attach skis using an A frame or diagonal carry
  • Access protection easily with gear loops integrated to hip belt
  • Removable lid, frame sheet, hip belt padding and sternum strap allow pack weight to be reduced up to 500g /1.10 lb for light and fast missions
  • Hydration compatible design features reservoir sleeve with drink tube exit port (Reservoir sold separately)
  • Storm flap provides weather protection when lid is removed
  • Fast-access side zipper allows you to find contents toward the middle and bottom of the pack
  • Designed to support any adventure with a highly weather and abrasion resistant coated nylon fabric
  • Quickly access a snack in the shoulder strap stretch pocket
  • Secure two ice axes with a dedicated tool garage
  • Easily store small items in the interior zipped mesh pocket

Technical Information:

UsageDay hike
Model number3204502
MaterialCoated 210D Robic, 70D nylon
Model number3204502
Dimensions29 x 26 x 58 cm


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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