The Sea To Summit Ascent down mummy sleeping bag redefines what versatile means in a sleep system. Complex construction and high-quality down keep you warm when its 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
Best Use
- Backpacking
Performance
- 2.5 Season:25F (comfort range 25F to 70F)
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
- ULTRA-DRY Down 750 Loft 90% Down Cluster Premium Duck Down certifiedResponsible Down Standard (RDS)
- Shell Fabric:Lightweight 20D Nylon Shell
- 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.
- Vertical baffles over the chesttopreventdown shifting as you roll over in your sleep.
- Shaped hood, oversized draft collar,andzipper draft tubekeep the cold out and the warmth in.
- Internal pocketfor phone / GPS / valuables.
- Form a snug double sleeping bagby zipping to any Altitude, Journey or Venture sleeping bag.
- Includeslightweight Ultra-Sil compression bag and storage cell.
- Shape: Relaxed Mummy
Specs
25FRegular | 25FLong | |
Bag Series | Ascent 1 | Altitude 1 |
Bag Weight | 1lb 14.3oz / 860g | 2lbs 0.8oz / 930g |
Compressed Volume (ASTM Standard) | 4.9 L | 6.4 L |
Compression Sack | S - 10L to 3.3L | S - 10L to 3.3L |
Fill Weight | 11.6oz / 330g | 13.1oz / 370g |
Fits Up To | 6 ft / 183 cm | 6 ft 6 in / 198 cm |
Season Rating | 2.5 Season | 2.5 Season |
Temperature (EN Rating) | 25F (Lower Limit) | 25F (Lower Limit) |
Women's Temp (EN Rating) |