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Big Agnes Hitchens UL 20 sleeping bag excels where every ounce counts, each nook and cranny in your pack is accounted for, and you depend on bag performance like you would a harness, helmet or beacon.

  • Features

    • Insotect Flow construction; vertically structured sidewalls with integrated contoured baffles trap heat closer to the body
    • Body-mapped baffle construction optimizes thermal efficiency
    • Traditional mummy shape allows for light weight and increased thermal value
    • 3D antisnag draft tube prevents heat loss along the zipper
    • Contoured hood baffles cradle the head for a comfortable fit
    • Oversized interior anti-draft collar
    • Ergonomic footbox construction provides loft and warmth
    • Ultralight high-tenacity ripstop nylon shell fabric has a durable water repellent (DWR) finish that causes water to bead up and roll off rather than soak in
    • DownTek water repellent down repels water while maintaining insulating value
    • Low-profile cordlock lets you un-cinch the hood with one hand
    • 40 in. (102cm) YKK® #5 zipper with zipper garage cuts weight and reduces cold spots
    • 2-way zipper allows easy access at waist for climbing harness tie-in
    • Interior fabric loops for sleeping bag liners
    • Streamlined exterior loops for hang-drying or storage
    • Includes a nylon stuff sack and mesh storage sack


    Many sleeping bags are rated for temperature by an independent testing protocol. With both European Norm (EN) 13537 and International Organization for Standardization (ISO) 23537 testing, each bag gets a Comfort (or T-Comfort) rating and Lower (or T-Limit) rating. The Comfort/T-Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower/T-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 hat, sleeping on a single 1 in. thick insulating pad. Many brands use the Comfort rating for women's bags and the Lower rating for men's and unisex bags. Everyone's body and sleep comfort differ, so EN and ISO ratings are simply a guideline to help you compare products.
    View all Big Agnes Men's Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    13 degrees (F) - EN

    Tested Comfort

    25 degrees (F) - EN

    Temperature Rating (F)

    20 degrees (F)

    Temperature Rating (C)

    -5 degrees (C)




    Ripstop nylon

    Zipper Location


    Insulation Type


    Water-Resistant Down



    850-fill DownTek water repellent down


    Ripstop nylon

    Sleeping Bag Shape





    Contains recycled materials

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