Thule Stir 18L Backpack

In stock

Going on a day trip? Looking to move quickly over some pretty rough terrain? You need a lightweight pack that can organize the gear you'll need most. No frills. Just the best. We get that. So does Thule, and that's why they make the Stir 18L backpack. This daypack's 18 liters holds everything you'll need for a daytrip. Even better: it weighs in at next to nothing, perfect for when you feel like hiking fast. A quick-access stretch pocket on the shoulder strap, and external lid pocket, trekking pole attachment points, and a dedicated hydration sleeve provide plenty of organizational options, letting you neatly store your stuff and access it quickly. Reflective material and a light-loop attachment point also help to make you visible in dim lighting, keeping you safe on the trail.


  • Stretch pocket on shoulder strap for smaller gear
  • Removable compression straps
  • Removable sternum strap and hipbelt for technical or casual performance
  • Reflective material and light loop attachment point for visibility
  • External lid pocket
  • Breathable back panel and shoulder straps
  • Dedicated hydration sleeve and two side water bottle pockets
  • Stowable trekking pole or ice axe loops


  • Avg. weight: 590 g (1.3 lbs)
  • Volume: 18 liters
  • Dimensions: 9.4 x 9.4 x 19.7 in
  • Fabric: elastin coated 210 denier Robic and 70 denier nylon

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