Mountain Equipment FireFly 40F Degree Down Sleeping Bag

The Mountain Equipment FireFly 40F Degree Down Sleeping Bag is for ultra light backpacking and alpinism. It is difficult to conceive a bag that is so reliably warm being any lighter. Perfect for high mountain use during the summer and at lower altitudes in late spring and summer. Plasma 10D outer shell is incredibly light and exceptionally breathable. 274g of 90 10 Russian goose down with minimum fill power of 800 Alpine fit with EXL system improves loft and maximizes thermal efficiency. Slanted box wall baffles throughout Ground level side seams 7 baffle low volume anatomically shaped hood 4 baffle anatomically shaped and offset footbox Full length Gemini zip baffle Plasma 10D inner throughout Supplied with waterproof roll top stuff sack and storage cube