-7°C Add Wish List Quick view + Quick Add Big Agnes Womens Greystone 20 Down Sleeping Bag Weighs 1071g Weighs: 1071g Comfort Limit: -7°C Insulation Type: Down Fill Weight: 624g Fill Power: 600 Down Treatment: Hydrophobic Zip Position: Right Zip Type: Mummy Womens Greystone 20 Down Sleeping Mummy Bag is designed for Women. 625g of Down Tek™ and a fill power of 600 gives a comfort limit of -7°C which is a good warmth to weight ratio for a bag weighing just over 1kg. Big Agnes says: Our... Was: Now: £279.99 RRP: £309.99 | Save: £30.00 + Quick Add