Sea to Summit Talus TsII Sleeping Bag

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Are you climbing a glaciated peak this summer or thinking about trying winter camping? The Sea to Summit Talus TsII sleeping bag is a great choice if you're looking for 1 bag that can do it all.

  • Features

    • High loft, premium 750-fill-power European duck down offers superb warmth with minimal weight; Ultra-Dry Down™ water-repellent treatment protects down from moisture
    • Ultra-Dry Down is a water-repellent polymer treatment applied to the 750-fill down; Ultra-Dry Down retains 60% more loft and absorbs 30% less moisture than untreated down
    • With a European Norm (EN) lower-limit rating of 14°F, the TsII bag will help keep you warm in all seasons, including mild winters
    • Shell fabric is constructed of 2D NanoShell™ technology, a ripstop nylon fabric treated with a Durable Water Repellent and a non-woven silicone encapsulated fabric
    • Innovative shell technology provides excellent protection against external moisture while allowing internal moisture from perspiration to pass through the thin coating
    • If condensation should form under the 2D NanoShell™ shell fabric, the Ultra-Dry Down treatment will minimize its effects on the down
    • Lining is a breathable, durable 20-denier polyester fabric with a soft touch
    • 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
    • Full-length side zipper allows bag to be joined to other Sea to Summit sleeping bags
    • 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
    • Foot area tapers outwards and forward to accommodate the natural angle of your feet
    • Preventing cold air from seeping in, offset baffle construction allows the duck down to remain fully lofted and keeps it from shifting
    • Sea to Summit Talus TsII 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


    Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. The Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
    View all Sea to Summit Men's Sleeping Bags
  • Technical Specs

    Best Use



    Tested Lower Limit

    14 degrees (F) - EN

    Tested Comfort

    27 degrees (F) - EN

    Temperature Rating (F)

    14 degrees (F)

    Temperature Rating (C)

    -10 degrees (C)


    Ripstop nylon

    Insulation Type


    Water-Resistant Down



    750-fill duck down



    Sleeping Bag Shape


    Stuff Sack Size

    7.5 x 14 inches

    Stuff Sack Volume

    10 liters



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