Alpinetrek expert Christian
"This product is no longer available."

This is either an older model or we can or will no longer reorder this product from the manufacturer.

Mammut - Sphere UL 3-Season - Down sleeping bag

No longer available

If you are already an Alpinetrek customer, you can log in here.

  • Free delivery from £50
  • 2-year warranty
  • 30 days returns policy
  • > 250,000 happy customers
  • All items in stock
Attributes & features
Suitable for:
Down sleeping bag
Recommended use:
Trekking; Mountain touring
prolightTX (100% polyamide); DWR treated
Inner material:
lightTX (100% polyamide)
500 g white goose down (contains non-textile elements of animal origin); 800 cuin bulking power; 95/5 (down/feathers)
Comfort rating:
- 1° C
Lower limit rating:
- 7° C
Extreme rating:
- 24 °C
Packed dimensions:
5.8 l
850 g
195 cm (max. height)
Draft collar; 3/4 length zip; wavelike chamber design
Item No.:
Product description
The Sphere UL 3-Season by Mammut is your ideal companion for touring from spring through to fall! The down sleeping bag is perfectly suited for trekking and mountain hiking. Due to its very light weight and small packed dimensions it will leave you with extra room for your gear or provisions.
Mammut have consistently focused on saving weight, choosing only the lightest, most durable materials for this high quality down sleeping bag. The Sphere UL 3-Season’s outside fabric is literally light as a feather, totally windproof, moisture-repellent and permanently waterproof through DWR treatment. This can be a crucial advantage when you are out and about, as even water condensation in your tent or bivy sack can reduce the insulation performance of downs.
For the down sleeping bag’s fill, Mammut rely on top quality down with a fill power of 800 cu in and a down to feather ratio of 95/10. This makes for a sleeping bag that is conveniently lightweight and highly compressible but, nevertheless, capable of developing a strong heat capacity. Cold spots are avoided as the fill is secured in wave shaped baffles. The perfectly shaped hood with its draft collar, as well as the three quarter length zip further minimize any loss of heat. The hood’s special design provides unobscured views even when it is closed.
The Mammut Sphere UL 3-Season is a good choice for anyone looking for a 3-season down sleeping bag for long trips that require elaborate gear and where every ounce of weight truly matters!

Ask our experts
Alpinetrek expert Christian

+49 7121 70120

Mo. - Fr. 09:00 - 16:00 (CET)

What do you think about that?

You have reached the max. number of characters.

Oops! You forgot to ask your question.

Click the number of stars to complete your review of this product

Click the number of stars to complete your review of this product

What is your review for this product?

By completing this upload you confirm our Terms of Use