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Sea to Summit Ascent -1C/30F

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In short

The Sea to Summit Ascent -1°C/30F down mummy sleeping bag redefines the meaning of versatile. In colder temperatures you can pull down the technical hood, close the draft tube protected zips and let the 750+ Ultra-Dry goose down keep you warm.

In warmer temperatures, the triple-zip Free-Flow Zip system allows you to open the zip in different configurations for excellent ventilation. On warm nights, you can even open the Ascent -1C sleeping bag completely to turn it into a quilt. You can also close the snap fasteners in the shoulder area, open the zip of the foot box and "wear" the Ascent like a piece of clothing when camping. All this makes the Ascent a true three-season backcountry sleeping bag - one of the few commercially available.

In detail

Sea to Summit Ascent Ascent -1°C
 Ascent -9°C
  R L R L
Comfort °C 3 °C -2 °C
Limit °C -1 °C -9 °C
Extreme °C    
Season 2+ season 3+ season
Fill weight (grams) 300 g 343 g 540 g 617 g
Weight (g) 782 g 879 g 1020 g 1157 g
Insulation material Ultra-Dry Down 750+ CUIN fill goose down
Up to bodysize <185 cm <198 cm <185 cm <198 cm
Shoulder- / Hip- / Footwidth (cm) 158 / 146 / 119 cm 168 / 156 / 129 cm 158 / 146 / 119 cm 168 / 156 / 129 cm
Compressed Size 5.5L 6.4L 7.5L 8.0L
Shape Mummy
Intended use Trekking

 

  • Ultra-Dry Down 750+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)
  • Free-flow zip system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter
  • Vertical baffles over the chest to prevent down shifting as you roll over in your sleep
  • Shaped hood, oversized draft collar, and zip draft tube keep the cold out and the warmth in
  • Internal pocket for phone / GPS / valuables
  • Includes lightweight Ultra-Sil compression bag and storage cell
  • Form a snug double sleeping bag by zipping to any 3/4 length zippered women's sleeping bag from Sea to Summit