Sea to Summit Ascent Down Sleeping Bag 25ºF Regular Length Green Camping NEW

  

With a full-length left-side zipper, half-length right-side zipper and footbox zipper, the Sea to Summit Traverse 25°F Synthetic sleeping bag provides top-notch ventilation in cool weather. In colder weather, the unique WaveLoft construction allows the Thermolite® insulation to expand out into air-trapping curves for maximum warmth. Full-length YKK #5 main side zipper and footbox zipper provide superior ventilation and allow the bag to be used as a comforter. Shaped hood and zipper draft tube keep the cold out and warmth in. Anatomically shaped footbox for extra space.

Form a snug double sleeping bag by zipping to any Sea to Summit Altitude, Journey or Venture sleeping bag (not included). Includes a lightweight 70-denier nylon compression bag. Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol-currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537.

Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. 25 degrees (F) - ISO.

35 degrees (F) - ISO. 30-denier nylon 345T with C0 durable water repellent (DWR). Lightweight 20-denier nylon 384T with C0 DWR.