Skip to product information
1 of 6

Sea To Summit

Ascent II Down Sleeping Bag

Ascent II Down Sleeping Bag

Regular price £312.00
Regular price £390.00 Sale price £312.00
Reduced Sold out
Tax included. Shipping calculated at checkout.

The Ascent down mummy sleeping bag redefines the meaning of versatile. 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, while light and compact enough to go anywhere.


• ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium • Duck Down certified Responsible Down Standard (RDS)
• 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 chest to prevent down shifting as you roll over in your sleep
• Shaped hood, oversized draft collar, and zipper 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 Altitude, Journey or Venture sleeping bag
• Best Use: Backpacking
• Comes with: Ultra-Sil compression bag and storage cell
• Insulation: Ultra-Dry Down 750+ Loft
• Shape: Relaxed Mummy
• Shell Fabric: Lightweight 20D Nylon Shell
• Zip: Free-Flow zipper system
• SIze: Regular


• Weight: 1100g
• Compressed Vol:6.2l
• Compression Sack: 10l-3.3l
• Fill Weight: 550g
• Fit up to Height: 183cm
• Season Rating: 3 season
• Temperature Rating EN Lower Limit: -10ºC

View full details