Skip to content

New in our shop: 5 year guarantee when purchased via

You are a pro? Join our Pro Program: Learn more


Altitude Women's Down Sleeping Bag (-4°C)

€419,95 €335,96
Cozy and warm, especially for your feet + three-zipper system for ventilation+ View tech specs
  • Temp Rating
  • Size
You can add a maximum of 20 units of this product to your cart.

BEST USE: Backpacking


WEIGHT: 2lbs 6.1oz | 1080g


Shipping & Returns

We use climate-neutral shipping with DHL GoGreen.

For orders with a value below 75€ we charge a shipping fee of 4,95€. We do not charge shipping fees for orders with a value over 75€.

All orders received by 12:00 noon on weekdays are usually shipped the same day. Later orders are usually dispatched the following working day.

Delivery time can take up to three working days Germany-wide and up to four working days for orders outside of Germany, and depends on the shipping service provider.

All orders can be returned within 14 days of purchase. However, for the sake of the environment, please make sure to keep returns as low as possible.

Find Locally
-4°C || Altitude Women's Down Sleeping Bag (25°F & 15°F)
Altitude Women's Down Sleeping Bag (-4°C)
€419,95 €335,96
Description || Altitude Women's Down Sleeping Bag


Incredibly versatile, the Altitude women's down sleeping bag is snug and cozy when it's cold, and cool and ventilated when the weather warms. Shaped to match your natural sleeping position the Altitude is both comfortable and light enough to carry anywhere.


Shaped for comfort

Narrower at the shoulders, wider between the hips and knees. Regardless of the position you sleep in (figure-four, on your side or on your stomach), this shape provides a significantly higher level of comfort by giving you the room to move without compressing the insulation.

Warmth from additional insulation

Additional insulation compared to unisex bags, positioned using different body mapping for thermal performance exactly where it is needed. The comfort and versatility-oriented Journey and Altitude sleeping bags have an additional Thermolite layer in the footbox to warm your feet fast. Temperatures for Women’s sleeping bags are shown using the gender appropriate Comfort rating.

Maximum comfort for a good night's rest

Construction details like snug-fitting hoods and oversized draft tubes keep you warm in cooler weather. As temperatures rise, the Free-Flow zipper system of the Journey, Venture and Altitude allow you to increase ventilation up to the point where the bag opens completely flat as a quilt. Super-soft fabrics are comfortable in any season.

You don’t have to narrow your options with a constrictive mummy bag – expand your horizons with a sleeping bag which fits the way you sleep.

Tech specs

  • Best Use
  • Comes With
    Ultra-Sil compression bag and storage cell
  • Insulation
    Ultra-Dry Down 750+ Loft
  • Shell Fabric
    Lightweight 20D Nylon Shell
  • Zip Options
    Free-Flow zipper system
-4°C Regular-4°C Long


Non-PFC Treatment

Design Details

Frequently Asked questions

Warm enough for shoulder seasons?

Yes. The high-lofting down, cozy hood and draft collar, and extra Thermolite® insulation in the foot box provide the warmth you need for cold weather. For cold weather, we recommend the Altitude 15°F paired with a greater than 3.5 R-Value sleeping mat like the Women's Comfort Light Insulated.

Really cool in summer temperatures?

Yes. The Free-flow zipper system means separate zippers on your left and right side and in the foot box. Open them for ventilation or turn the Altitude into a comforter.

Able to be zip together with another sleeping bag?

The main side zipper can be zipped to Sea to Summit Ascent, Trek or Traverse sleeping bags. The Altitude Regular and Long bags have the same side zipper length.

You have more questions?

Check out our FAQ page HERE and discover even more answers about our products.

Customer Reviews

Based on 19 reviews (Reviews from global Sea to Summit websites) Write a review