SKU: SS22890 Weighs: 550g Fill Power: 850 Down Treatment: Standard Comfort Limit: 0°C Insulation Type: Down Zip Position: Left Zip Fill Weight: 275g Type: Mummy UOG TOP PICK - Ultra 0° M Down Sleeping Bag The bag uses high-quality down and ultra-light ripstop nylon; these high-quality materials are how the bag can provide such high levels of warmth at such a low weight and w… Ultra 0° M Down Sleeping Bag