Alta Lady Left

3-season synthetic bag

Our most popular synthetic sleeping bag for women with a thermal efficient construction

Product: Alta Lady Left


    • Weight: 1.72 kg
    • T-Comf: 0°C
    • Person length/width: 175/80 cm
    • Volume compressed: 31x24 cm (14L)

    Alta Lady Left

    Our best-selling and award-winning Alta range has been redesigned with a new fit, new fabrics and the warmth-to-weight efficiency has been improved by 20%. We can offer a bag for any climate, with temperature ratings between T-Limit +8 down to T-LIM -25 and a wide range of fit with standard, long, extra long and lady versions. There is also our unique lady-fit that incorporates a shaped internal collar, additional width and extra down fill in the foot area for an even more comfortable night’s sleep.

    The biggest design change is the shape. If a sleeping bag fits well, it will keep you warm. We translated the fit of our Rago series into a synthetic bag using the same high-performance water-repellent Helsport Thermoguard fill and adjusting the shape of the shoulders and hood to minimise heat loss.

    The main zip has been redesigned to reduce snagging and the drawcord material changed and improved for ease of use. The design around the hood opening has been completely changed with an internal drawcord and a soft, insulated face muff added for greater comfort while you sleep.

    Underneath, we have kept the same no-slide base to make sure you wake up in the same place where you went to sleep. There is a handy pillow pocket under the hood for extra clothes to be turned into a pillow, and reflective tabs at the foot for a final touch.

    The compression sac has been updated with new fabric, double-ended compression fins and low-profile buckles to avoid snagging. The lid opening has been highlighted with a strip of reflective piping for ease of use.

    • Zip:Left
    • Zip length (cm):140
    • Fill Material:Thermoguard 6000® + 550 FP 80/20 Duck down
    • FillConstruction:Sandwich
    • Net weight (kg):1.77
    • Net volume (l):0
    • T-Comf:0
    • T-Lim:-6
    • T-Ext:-23
    • Sleeping bag person length (cm):175
    • Sleeping bag person width (cm):80
    • Gender:Women
      1. What's the european temperature rating?

        Since 2012 Helsport has used the European standard EN13537 to rate its
        sleeping bags. This standard allows comparisons amongst sleeping bags from
        different producers.

      2. What does the temperature values: TCOMF, TLIM and TEXT mean?

        It is important to know that the temperature rating is valid for an average
        person, in an average situation. When you are out hiking, no single trip is the
        same. People react differently to cold, levels of fitness can vary, and the
        surroundings will change every time.

        • TCOMF: the green zone is called the "comfort zone", and in this
          temperature range most people will be able to sleep comfortably.
        • TLIM: the yellow zone is called a "transition zone", between comfort and
          risk. Many people can sleep comfortably in this temperature range, but
          some may also start to freeze.
        • TEXT: The red zone is the "risk zone" and, in this range, a strong
          sensation of cold has to be expected. There is a risk of hypothermia. An
          average-sized woman can only tolerate this zone for six hours.
      3. Synthetic or down?

        There are no hard and fast rules here, and what type of sleeping bag is right for
        you will depend on what type of trips you’ll be using it for, your personal
        preference and your budget.


        High-quality down sleeping bags will always be warmer relative to their weight
        than synthetic sleeping bags. The lifespan of the two types is roughly the
        same. Down sleeping bags are more demanding with regard to correct
        maintenance and storage (they should be stored in the storage bag or hung


        Synthetic bags insulate better than down bags when wet. Luckily, it’s rare for a
        sleeping bag to get soaking wet, but it’s something that’s worth bearing in
        mind when choosing a sleeping bag. Regardless of how well a sleeping bag
        insulates, it’s no fun sleeping in a wet bag.

      4. Can I wash my sleeping bag?

        You certainly can wash your sleeping bag, but you shouldn’t do it too often.
        Using a sleeping bag liner that can be washed often is a good alternative.
        A sleeping bag liner does not only protect your sleeping bag, it’s also very
        comfortable and can increase the temperature limit of your sleeping bag by
        up to 8 degrees.

        Sleeping bags can be washed at 40 °C with a low spin. It’s important to use a
        detergent especially adapted for sleeping bags in order to avoid residue
        building up in the filling. Synthetic sleeping bags can be washed at 60 °C,
        although this will shorten the product’s lifespan. Again, we recommend using
        a liner instead and washing it more frequently if required.

        Always tumble-dry your sleeping bag. It’s a good idea to put some tennis balls
        or special dryer balls in the drum to help “fluff up” the bag’s filling again.