Ascent Down Mummy Sleeping Bag (25°F)

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 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

Best Use

• Backpacking

Performance

• 2.5 Season: 25°F (comfort range 25°F to 70°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

• ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down certified Responsible 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 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.
• Form a snug double sleeping bag by zipping to any Altitude™, Journey™ or Venture™ sleeping bag.
• Includes lightweight Ultra-Sil™ compression bag and storage cell.
• Shape: Relaxed Mummy