Camp Alpine Camping Mummy -3 Degrees Celsius Ultralight Down Sleeping Bag ED 150,Black Ideal for energy saver Fill 90% White Goose Down,Filling Power 650 Comfort temperature 13 Degrees Celsius,limit temperature 10 Degrees Celsius,extreme temperature -3 Degrees Celsius Weight:0.52kg,SB size:205*75*55cm,SS size:13*13*29cm The line with the best price-performance ratio.