{"product_id":"expedition-down-sleeping-bag","title":"Northern Warmth Expedition Down Sleeping Bag","description":"\u003cp\u003eThe same mummy bag as our three-season model, built with between one and a half and two kilos of duck down in it. This is the version for frost on the inside of the flysheet — hard winter, exposed pitches, and anyone who has spent a night shivering and decided never again.\u003c\/p\u003e\u003ch3\u003eChoosing the fill weight\u003c\/h3\u003e\u003cp\u003eOur own guidance, not a tested rating. More down means more warmth and more bulk, in that order.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500 g\u003c\/strong\u003e — British winter, snow on the ground, wild camping in January.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1800 g\u003c\/strong\u003e — hard frost and long nights, or if you sleep cold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000 g\u003c\/strong\u003e — expedition use and altitude, where being cold is not an inconvenience but a problem.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBelow 1500 g, see the \u003ca href=\"\/products\/mummy-down-sleeping-bag\"\u003ethree-season bag\u003c\/a\u003e instead.\u003c\/p\u003e\u003ch3\u003eIt opens out flat\u003c\/h3\u003e\u003cp\u003eUnzipped all the way round, the bag lies flat as a quilt — useful in a van or an awning. It packs back into the compression sack that comes with it.\u003c\/p\u003e\u003ch3\u003eNo temperature rating\u003c\/h3\u003e\u003cp\u003eThis bag has not been laboratory-tested to ISO 23537, so we do not print a comfort figure. At this fill weight the honest description is: colder than most people will ever camp in. \u003ca href=\"\/pages\/temperature-ratings\"\u003eHere is why we say it that way\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eCare\u003c\/h3\u003e\u003cp\u003eStore the bag loose, never compressed. Wash rarely, with a down-specific detergent on a cold gentle cycle, then tumble dry low with two clean tennis balls until the clusters separate. Do not dry clean.\u003c\/p\u003e","brand":"Northern Warmth","offers":[{"title":"1500 g \/ Black","offer_id":48891254243513,"sku":"SU00347787-Black-1500g","price":179.0,"currency_code":"GBP","in_stock":true},{"title":"1500 g \/ Blue","offer_id":48891254276281,"sku":"SU00347787-Blue-1500g","price":179.0,"currency_code":"GBP","in_stock":true},{"title":"1500 g \/ Red","offer_id":48891254309049,"sku":"SU00347787-Red-1500g","price":179.0,"currency_code":"GBP","in_stock":true},{"title":"1800 g \/ Black","offer_id":48891254341817,"sku":"SU00347787-Black-1800g","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"1800 g \/ Blue","offer_id":48891254374585,"sku":"SU00347787-Blue-1800g","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"1800 g \/ Red","offer_id":48891254407353,"sku":"SU00347787-Red-1800g","price":199.0,"currency_code":"GBP","in_stock":true},{"title":"2000 g \/ Black","offer_id":48891254440121,"sku":"SU00347787-Black-2000g","price":219.0,"currency_code":"GBP","in_stock":true},{"title":"2000 g \/ Blue","offer_id":48891254472889,"sku":"SU00347787-Blue-2000g","price":219.0,"currency_code":"GBP","in_stock":true},{"title":"2000 g \/ Red","offer_id":48891254505657,"sku":"SU00347787-Red-2000g","price":219.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/3100\/3321\/files\/27231758-2dbd-44c1-bb2f-a03af1a5598e_24f52487-f260-40b3-978f-147e7e31a633.jpg?v=1787490619","url":"https:\/\/northernwarmthgear.com\/products\/expedition-down-sleeping-bag","provider":"Northern Warmth","version":"1.0","type":"link"}