SKU: SS23914 Weighs: 1220g (Regular) Comfort Limit: -9°C Type: Mummy Insulation Type: Down Fill Weight: 736g Fill Power: 800 Down Treatment: Hydrophobic Zip Length: 3/4 Length Zip Position: Left Zip The Nitro 800 is a lightweight, warm bag designed around the traditional mummy bag but with a few unique features that make Sierra Designs bags stand out. Great value for a bag with this much going on. Sierra Designs sa… Nitro 800 0 Degree Down Sleeping Bag