Marmot Never Winter Sleeping Bag - Dark Lichen/Greenland Left-Zip Certified 650 Fill Power Down with Down Defender to Improve Water-Resistance in Wet Conditions Anatomically Designed Footbox with Wrap-Around Construction increases Warmth Full Length Locking YKK Two Way Zipper with Anti-Snag Slider reduces fabric snagging EN Tested Nautilus Multi-Baffle Hood