Sea to Summit - Ascent AcII - Down sleeping bag

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At a glance

% recommend
100% recommend
Full-length zip
Full-length zip
Customers say: Spacious
Customers say: Spacious
Customers say: Durable
Customers say: Durable
Hydrophobic down
Hydrophobic down
Three seasons
Three seasons
°C comfort rating
-3°C comfort rating
Shop consciously!
Shop consciously!
1100 g
Material information & features
Suitable for:
Recommended use:
Expedition, Camping
Main material:
100% polyamide
100% down
Material note:
Contains non-textile parts of animal
Fabric treatment:
hydrophobic Down
Down-to-feather ratio:
60/40 (down to feather)
contains RDS certified down
side zip, Drawstring
Comfort rating:
-3 °C
Lower limit rating:
-9 °C
Extreme rating:
-28 °C
Three seasons
Dimensions (interior):
max. height Regular/Long: 183/192 cm
1,100 g
Reference size:
Regular size
Item No.:
Product description

The Ascent™ Series is the most versatile down sleeping bag collection from Sea to Summit. The Ascent AcII is a real all-rounder filled with 750-fill power down for undertakings in more extreme conditions. For compact transport, the sleeping bag comes with a compression bag. The unique design of the Ascent™ series sleeping bag offers more space than traditional mummy sleeping bags, but still provides excellent thermal efficiency, so you can use it whilst adventuring above the treeline. This is due in part to the Free-Flow triple-zip System, which also gives you a variable ventilation option. The half-length zip on the right and the full-length zip on the left allow you to stretch out your arms and give you the option of folding the upper portion of the bag over like a blanket. If it gets warmer outside, you can use the two-way full-length zip and the additional zip at the foot box to convert the bag into a quilt.

If you get too cold, zip up the bag, cinch the drawcords and snuggle up in the large hood, which has a dual cord adjustment for ultimate comfort. The use of high-quality 750+ loft down guarantees high levels of insulation, whilst the oversized draught tube, complete with anti-snag materials, prevents heat loss through the zip.

Lastly, the Ascent AcI comes equipped with the Zip Coupling system, which allows you to pair this bag with other compatible sleeping bag models quickly and easily.

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  • Advantages
    Full length zip
    Draft collar

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