SKU: SS19116V Down Treatment: Hydrophobic Fill Power: 900 Fill Weight: 345g (based on size Regular) Insulation Type: Down Weighs: 594g (Regular) Comfort Limit: -6°C Zip Length: 3/4 Length Zip Position: Left Zip Type: Mummy UOG TOP PICK - Thermarest Hyperion 45, 32, 20 Sleeping Bags - these three bags cover from +7C to -6C and use 900+ Fill Power down, there are some effective features that make these bags stand out from the crowd. Ultralig… Hyperion 20 UL Down Sleeping Bag