This sleeping bag has three different fluffy specifications and two sizes. SP400/SP700/SP1000 fluffy were 400g/700g/1000g (0.88/1.54/2.2lbs); And M size: 190*75cm/29.5*74.8inch, L size 205 *80cm/80.7*31.4inch.

Stay warm, dry, and comfortable all night long with the Naturehike Ultralight 650FP Duck down Mummy Sleeping Bag. It is made with a 20D water-resistant Nylon Fabric (anti-pilling), it is waterproof and warm at the same time, with different fill levels to resist different temperature extremes, in general, it can provide excellent insulation in temperatures as low as 38.8~-42.1℉.

Designed to provide the most efficient insulation, our sleeping bag for cold weather boasts a relaxed mummy shape that retains heat, and the all-round windproof warmth of the three-dimensional bib and the large space of the three-dimensional foot compartment making it an exceptional camping sleeping bag for all of your outdoor adventures. Keep warm while you sleep under the stars for a good night’s rest, even in challenging weather conditions.

Your lightweight sleeping bag easily packs down to fit into the included stuff sack for easy compressed packing and carrying. Weighing only: 1.8pounds( M-SP400 )/2.6pounds( M-700 )/3.6pounds( M-SP1000 ), 1.8pounds( L-SP400 )/2.9pounds( L-SP700)/3.7pounds( L-SP1000), the Naturehike Ultralight 650FP Duck down Mummy Sleeping Bag makes an excellent backpacking sleeping bag that you can bring with you anywhere.

Sleeping bag with a cell phone insulation bag, can avoid rapid power loss of the phone, anti-freeze anti-shutdown; two-way YKK zipper design is convenient to wear, zipper can be opened at both ends, the use of more flexible and convenient; double wind-blocking stripes can effectively block the invasion of the cold wind (700g sleeping bag for the 1 wind-blocking stripes, 1,000g sleeping bag for the 2 wind-blocking stripes, the thermal insulation bag is limited to the design of the sleeping bag 1000g) )