Details Sea to Summit Flame FmIII Down Sleeping Bag When you need a performance sleeping bag but don't want to be weighed down, check out Sea to Summit's ultra-light down Flame Fm sleeping bags. Designed to balance as much warmth as warm as possible with minimal packed weight and size, the female specific Flame series uses a superlight 10D nylon shell stuffed with RDS 850+ loft, dry-treated premium goose down in a full box baffle construction. A light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics, are combined with a women's expedition mummy fit, that's wider at the hip and narrower at the shoulder (plus extra down overall) for efficient insulation. Weight: 665g Temperature rating: EN -4°c Comfort to -10°c Lower limit Max user height: 170 cm Width (shoulder): 75 cm Width (footbox): 45 cm Uses a full box baffle construction to accommodate extra down and reduce cold spots Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room Vertical baffles on chest optimises positions of down to prevent it moving during use Full side zip with two sliders provides easy access and extra ventilation options Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed Specifications Flame FmIII Down Sleeping Bag