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Sea To Summit Altitude Alt 25 Sleeping Bag- Women's · Turquoise

Sea To Summit Altitude Alt 25 Sleeping Bag- Women's · Turquoise

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Product details

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.


ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)

Thermolite® insulation in the foot section warms your feet instantly

Free-flow zipper system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter

Internal pocket for phone / GPS / valuables

Shaped hood, oversized draft collar, and zipper draft tube keep the cold out and the warmth in

Includes lightweight Ultra-Sil compression bag and storage cell

Form a snug double sleeping bag by zipping to any Ascent, Trek or Traverse sleeping bag

Temperature rating
25° F
Intended use
Fill type
2.38 lb
Sleeping capacity
Ultra-Dry Down 750+ Loft
Age Group
Zipper location
Is ultralight
Tested lower limit
11° F
Tested comfort
25° F
Lightweight 20D Nylon Shell
Shoulder girth
58 in.
Hip girth
58 in.
Fits up to
67 in
Compressed volume
Sea To Summit Altitude Alt 25 Sleeping Bag- Women's · Turquoise
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Top reviews
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Reece Kothe
Reece Kothe
Verified camping & hiking expert
Reviewed Aug 29, 2022

Backpacking in high mountain climates; comfortable for sleepers who tend to move around and shift throughout the night.