Zero Superlight 8° to 2°C Down Sleeping BagThe Mont Zero range is the holy grail of ultra light 2 3 season sleeping bags. We have made every gram count to give you the lightest, full sized sleeping bag range on the market. The Zero SL is filled with 275g of 1000+ loft RDS goodse down and weighs in at only 417g. The Zero SL Down Sleeping Bag is appropriate for temperatures as low as 2C and accommodates a user up to 203cm tall (XL). The Zero SL Sleeping Bag is perfect for 2 to 3 season