Where your head rests, there\'s a heat collar with hook and loop closure & elastic cord for keeping heat close. A DryZone outer coating prepares you sleepy heads for unexpected showers during the night after a long hike.From top to toe, the sleeping bag doesn\'t compromise on comfort, because the bottom of the sleeping bag gets an Ergofoot box for your feet to luxuriate in - team with thick socks for bonus warmth!It\'s not always natural to stay in one place whilst you sleep - we generally toss and turn a lot and unlike some stiffer sleeping bags, this one is fitted with a stretch comfort system. An inside pocket lets you store a torch if you wake up restless in the middle of the night as well.Loll around in the cold mornings whilst you\'re still rising and shining from your tent. Zip out of easily with the anti-jamming zip strip!90/10 down-to-feather rating & 650+ fill powerTrapezoidal baffle construction - prevents cold spotsElastic seams around the baffles - draw soft lining closerStretch Comfort SystemArrow foot design - ergonomically shaped foot section allowing you to relax in a natural positionHeat Collar with elastic adjustment Water-repellent outer shell - Dryzone Tech head and foot1 x inside pocket - store a torchWell constructed zip - less prone to jammingHeat collar - with hook and loop closure & elastic cordContains RDS certified down, contains bluesign approved fabricsFill weight / Weight: 800g / 1500gDimensions: 205 x 87 x 58 cmWarmth- 7°C: The temperature at which a standard woman can expect to sleep comfortably in a relaxed position-15°C: the temperature at which a standard man can sleep for eight hours in a curled position without waking-35°C: The minimum temperature at which a standard woman can remain for six hours without risk of death from hypothermia (though frostbite is still possible)