Sea To Summit Ascent AcI Down Sleeping Bag -4C Long

Light and compact + three-zipper system for ventilation

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.

Features:

• 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

Tech Specs:

• Design Type: Backpacking
• Comes With: Ultra-Sil compression bag and storage cel
• Insulation: Ultra-Dry Down 750+ Loft
• Shape: Relaxed Mummy
• Sheel Fabric: Lightweight 20D Nylon Shell
• Zip Options: Free-Flow zipper system

Measurements:

• Bag Weight: 930g
• Compressed Vol (ASTM Standard): 6.4 L
• Compression Sack: S - 10L to 3.3L
• Fill Weight: 370g
• Fits Up To Height: 198 cm
• Season Rating: 2.5 Season
• Temperature Rating (EN Lower Limit): -4ºC