Sea To Summit | Ascent Down Sleeping Bag 15°F
The Ascent down sleeping bag is a relaxed mummy style that redefines what versatile means in a sleep system. Complex construction and high-quality down keep you warm when it’s cold outside, while the triple-zipper Free-Flow Zip™ system ensures you stay cool and ventilated when the weather warms.
Shaped to allow a natural sleeping position for comfort, the Ascent is light and compact enough to go everywhere your adventures may take you.
HIGHLIGHTS
Performance
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3 Season: 15°F (comfort range 15°F to 65°F)
Shape
- More room between hips and knees to allow you to sleep in a natural position without compressing the down insulation and creating cold spots. Far more comfortable than narrow mummy bags for most sleepers.
FEATURES
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ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)
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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.
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Vertical baffles over the chest to prevent down shifting as you roll over in your sleep.
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Shaped hood, oversized draft collar, and zipper draft tube keep the cold out and the warmth in.
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Internal pocket for phone / GPS / valuables.
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Form a snug double sleeping bag by zipping to any Altitude™, Journey™ or Venture™ sleeping bag.
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Includes lightweight Ultra-Sil™ compression bag and storage cell.
TECH SPECS
15°F REGULAR 15°F LONG
BAG WEIGHT 2lbs 6.8oz /1100g 2lbs 10.2oz / 1195g
COMPRESSED VOL 6.2L 7.8L
(ASTM STANDARD)
COMPRESSION SACK S - 10L to 3.3L M - 14L to 4.5L
FILL WEIGHT 19.4oz / 550g 21.7oz / 615g
FITS UP TO 6 ft / 183 cm 6 ft 6 in / 198 cm
SEASON RATING 3 Season 3 Season
TEMPERATURE 15°F (Lower Limit) 15°F (Lower Limit)
(EN RATING)
WOMEN'S TEMP 27°F (Comfort Limit) 27°F (Comfort Limit)
(EN RATING)