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Sea to Summit Traverse Xt I Sleeping Bag

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Spring backpacking to hut-to-hut ski touring, the Sea to Summit Traverse Xt I down sleeping bag keeps you warm in a broad range of environments and a variety of activities.

  • High loft, premium 850-fill-power goose down offers superb warmth for minimal weight
  • Shell fabric is constructed of 3D NanoShell™ technology, a 20-denier ripstop fabric treated with a Durable Water Repellent and a non-woven silicone encapsulated fabric
  • Innovation shell technology manages condensation, moving moisture vapor through down and siliconized barried outward; shell repels water and protects the loft of the bag
  • Lining is a breathable, durable 20-denier polyester fabric with a soft touch
  • Full length side zipper and foot zipper allow bag to be converted from traditional sleeping bag to a duvet/down comforter
  • Relaxed mummy shape is cut with a large hood, broad shoulders and large chest for a more comfortable sleeping bag while maintaining thermal efficiency
  • Upper side of bag features a differential cut (inner layer is cut smaller than the outer layer to create consistent thickness of insulation) to help prevent cold spots
  • Reverse differential cut on lower side; inner layer is cut larger than the outer layer to allow down to loft up, filling spaces around body so warmth wraps around you
  • Oversize draft tube backing the zipper keeps the warmth in and the cold out; zipper is backed by stiff, antisnag tape for smooth operation
  • Interior zipper security pocket is great for stowing small essentials, alleviating middle-of-the-night fumbling and preserving battery performance in cold weather
  • Oversize collar drapes comfortably over neck and shoulders, sealing out drafts; dual elastic adjusters
  • Preventing cold air from seeping in, offset baffle construction allows the goose down to remain fully lofted and keeps it from shifting
  • Sea to Summit Traverse Xt I bag comes with a Ultra-Sil® compression sack, an oversize mesh storage cell and a large cotton sack
  • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags

Imported.

Item 830939

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Sea to Summit Traverse Xt I Sleeping Bag Specs
Specification
Description
Best use
Backpacking
19 degrees Fahrenheit
30 degrees Fahrenheit
19 degrees Fahrenheit
-7 degrees Celsius
2 lbs. 10 oz.
1.0 / 1.2 kilograms
Polyester
Down
850-fill goose down
15.5 ounces
Polyester
Mummy
72 / 78 inches
59 inches
54 inches
7.5 x 14 inches
10 liters
Unisex
EN lower limit (rating for men)
EN comfort (rating for women)
Temperature rating (F)
Temperature rating (C)
Weight
Weight - metric
Shell
Insulation type
Fill
Fill weight
Lining
Sleeping bag shape
Fits up to (in.)
Shoulder girth (in.)
Hip girth (in.)
Stuff sack size
Stuff sack volume
Gender

Sea to Summit Traverse Xt I Sleeping Bag Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Sea to Summit Traverse Xt I Sleeping Bag
 
5.0

(based on 4 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Lightweight (4)
  • Adjustable hood (3)
  • Comfortable (3)
  • Durable (3)
  • Packs small (3)

Cons

    Best Uses

    • Backpacking (3)
    • Cold conditions (3)
      • What Is Your Gear Style:
      • Survivalist / minimalist (3)
      • Was this a gift?:
      • No (3)

    Reviewed by 4 customers

    Sort by

    Displaying reviews 1-4

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    5.0

    Best bag I've ever owned.

    By Foguinho

    from Santa Catalina Island, Long Beach, Ca

    About Me Professional/Guide

    See all my reviews

    Site Member

    Pros

    • Adjustable Hood
    • Comfortable
    • Durable
    • Lightweight
    • Packs Small
    • Roomy
    • Warm

    Cons

      Best Uses

      • 4 Season camping
      • Backpacking
      • Car Camping
      • Cold Conditions

      Comments about Sea to Summit Traverse Xt I Sleeping Bag:

      I've owned a lot of bags. I've learned a lot of things: Don't wash your bag in a machine, Give it plenty of time and space to breathe and Don't buy cheap bags. Sleep systems are truly an area of backpacking where you get what you pay for.

      This bag is worth every penny. Saying it is warm isn't the way to describe it. It regulates. Its almost a live. The 850 down is great but real magic is in the shell and lining. I sleep fairly warm and I get the sweats pretty easily. This bag keeps me so comfortable. I've sent it down to about 20degrees and it performed great. I've gone up to about 58degrees and I couldn't believe how comfy it was. The lining feels like satin and the shell feels like a nylon tank. Take advantage of the full zip design (Cross open zippers to allow ventilation. It will change the way you sleep in your bag). It stuffs perfectly into its stuff sack. I cannot recommend it enough.

      • What Is Your Gear Style:
      • Minimalist
      • Was this a gift?:
      • No

      Comment on this review

       
      5.0

      Super comfy and warm

      By XcSkiR

      from Chicago, IL

      About Me Casual/ Recreational

      See all my reviews

      Site Member

      Pros

      • Adjustable Hood
      • Comfortable
      • Durable
      • Lightweight
      • Packs Small
      • Roomy
      • Warm

      Cons

        Best Uses

        • 4 Season camping
        • Backcountry hut trips
        • Backpacking
        • Cold Conditions

        Comments about Sea to Summit Traverse Xt I Sleeping Bag:

        I really love cross-country skiing, and have wanted to try backcountry skiing for some time now. I've always been concerned that sleeping in a hut would be too cold, or that a warm sleeping bag would be too bulky. The Traverse packs down small, but is really, really warm. The zipper is really easy to open too, even in the dark. Somehow, Sea to Summit has built in some kind of stiffener under the zipper which stops it jamming. It opens easily every time. I was so impressed, I had a friend take a picture of me opening and closing the zipper on our hut trip! And, if it does get too warm, the Traverse has a separate foot zipper which you can open - so cool!

        • What Is Your Gear Style:
        • Minimalist

        Comment on this review

         
        5.0

        Yum! - Toasty warm design and materials

        By MountainSwede

        from Denver, CO

        About Me Avid Adventurer

        See all my reviews

        Site Member

        Pros

        • Lightweight
        • No chilly air leaks
        • Quality Materials
        • Warm comfy

        Cons

        • None

        Best Uses

        • 3 Season Camping
        • Backcountry hut trips
        • Cold Conditions

        Comments about Sea to Summit Traverse Xt I Sleeping Bag:

        Wow - one of the best designed sleeping bags I have ever used. High quality down makes it deliciously poofy and warm, and the clever neck gaiter - hood design practically created an insulated hood for my head. I normally sleep with a hat on, for warmth, and it almost always comes off during the night, causing me to feel cold and wake up. It did this time as well - but it didn't matter! The generous and well-shaped "hood" kept my head toasty warm, without me having to pull the bag practically shut (reducing air intake). The neck gaiter, too, is large and poofy and sealed in the heat for my trunk and the rest of my body.
        I was a little surprised when I first looked at the materials, especially the inner material, which seemed glossy. I wondered if that would be uncomfortable. It wasn't at all, and I later learnt that the material is thin but densely woven, in order to stop any pieces of down from escaping. Makes sense and didn't feel weird against my body.
        I used the bag on my last backcountry hut trip here in the Rockies. The temperature in our unheated bedroom was mid 30s, and I was warm. I do feel the cold normally, so I'm not sure how much below 30 I would go with the bag, as a woman.
        Zippers etc. seem fine. The bag packs down pretty small. Overall, I love it - especially how warm and poofy it appears and in fact is!

        • What Is Your Gear Style:
        • Minimalist
        • Was this a gift?:
        • No

        Comment on this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Super Awesome Bag!

        By BoUlDeRnAtIvE12

        from Denver, CO

        About Me Casual/ Recreational

        See all my reviews

        Pros

        • 3D NanoShell technology
        • Adjustable Hood
        • Anatomic foot box
        • Comfortable
        • Durable
        • Foot zip
        • Lightweight
        • Packs Small
        • Roomy
        • Warm

        Cons

          Best Uses

          • 3 Season Camping
          • Backpacking
          • Car Camping

          Comments about Sea to Summit Traverse Xt I Sleeping Bag:

          I love this bag! It's super cozy and keeps me (a fairly cold sleeper) super toasty at night. I used it for the first time on a trip to Lake Powell and loved it! The technical aspects of the bag are amazing- the 3D NanoShell technology is impressive at managing any kind of dampness or moisture and really does perform when it comes to keeping the down from getting wet/damp. I highly recommend!!

          • What Is Your Gear Style:
          • Comfort Driven
          • Was this a gift?:
          • No

          Comment on this review

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