Sea To Summit Ascent AcI 25F

Other 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 allows use as a comforter
• Tapered rectangular shape for the perfect balance of space and adaptable warmth
• Super-light 20D Nylon shell and lining fabrics for minimal packed size and maximum breathability
• Vertical baffles over the chest to prevent down shifting as you roll over in your sleep
• Generously sized hood and dual cord adjustment for maximum heat retention
• Oversized neck draft tube with dual adjustment system
• Oversized zipper draft tube with anti-snag material
• Anatomically-shaped footbox retains warmth around your feet
• 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:
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.