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Item #: brs0004


Buttermilks 40 Pack

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Regular Price: $164.95


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  • Black
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Product Information

Product Information For The Boreas Buttermilks 40 Pack


Brand Boreas
Weight 2 lb 14 oz / 1.3 kg
Backpack Style Multi-Day Pack
Gender Unisex
Pack Size 2000-2999 cu in
Capacity Small: 2320 cu in / 38 L
Medium: 2441 cu in / 40 L
Large: 2441 cu in / 40 L
Hydration Bladder Included Not Included
Hydration Compatible Yes
Backpack Features Hydration Compatible, Included Rain Cover, Top Loader
Laptop Sleeve None
Material 420D Nylon Ripstop
Body Material 100D Robic Triple Ripstop
Sizing Torso:
Small: 16-18 in / 40-46 cm
Medium: 18-20 in / 46-51 cm
Large: >20 in / >51 cm


The Boreas Buttermilks 40 Pack is light and uncomplicated with a z-foam back panel and a removable frame sheet that is shaped to match the curve of your back. The super-light 140D ripstop nylon pack fabric is impregnated with silicone for waterproof strength that won't wear out or rub off over time.


  • Molded EVA z-foam backpanel
  • Applied PU ribcage construction provides lightweight structure
  • Full-face front stretch fabric pocket
  • Two-stretch fabric side pockets
  • Dual daisy chains that tuck away when not in use
  • Two hip belt pockets
  • Hidden gear loops on shoulder straps

Reviews For The Boreas Buttermilks 40 Pack


by PowerReviews
BoreasButtermilks 40 Pack (2136 cu in)

(based on 1 review)

Reviewed by 1 customer

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(0 of 1 customers found this review helpful)





Verified Buyer


  • Comfortable Back Support
  • Elastic Space
  • Good Fit For Skinny Boy
  • Hidden Daisy-chain
  • Light-weight
  • Nice Design And Cutting


    Best Uses

      Comments about Buttermilks 40 Pack (2136 cu in):

      I got a 60L of boreas and a 40L
      Its good camping backpack for a few days or exploring

      Displaying review 1

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      Questions & Answers

      Q & A For The Boreas Buttermilks 40 Pack

      Do you have questions about this product?

      get answers from real customers and in-house experts with AnswerBox.

      2 Questions | 3 Answers
      Displaying questions 1-2
      • Buttermilks 40 Pack (2136 cu in)


        What are the dimensions of this pack? LxWxH?
        Asked on 2/19/2014 by Gabe from Halifax, Nova Scotia.

        1 answer

        • Staff Reviewer


          The Large Buttermilks 40 measures rougly 22 iches tall, 12 inches wide, and 10 inches deep. Hope that helps

          Answered on 2/20/2014 by Evan - Gear Expert from
      • Buttermilks 40 Pack (2136 cu in)


        What is the capacity difference between Medium and Large?
        Asked on 11/11/2012 by Billholio from Grand Rapids, MI

        2 answers

        • Staff Reviewer


          They are the same capacity. The only difference is the extended foam back panel on the Large.

          Answered on 11/12/2012 by Dallon - Gear Expert from
        • A:

          The specifications are as follows:
          Torso: 17 - 20 in / 46 - 51cm (M); >20 in / >51cm (L)
          Weight: 3 lb / 1365 g (M); 3 lb / 1370 g (L)

          Answered on 11/11/2012 by Community Answer from None
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