{"product_id":"sea-to-summit-spark-down-sleeping-bag-18-c","title":"Sea to Summit Spark Down Sleeping Bag -18°C","description":"\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eTake bold risks and conquer the elements with the unbeatable 4-season Sea to Summit Spark Down Sleeping Bag -18°C. With precise engineering and top-quality materials, this compressible bag offers unmatched warmth, empowering you to push boundaries. Perfect for the daring adventurer seeking a featherlight experience, the Spark can also work with the female version for a double bag setup or with a Sea to Summit quilt to provide extra insulation during frigid solo nights.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrn.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrn.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock System integrates with StS quilts.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -10°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -18°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 730g \/ Long: 786g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 1113g \/ Long: 1204g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 20L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43862099067061,"sku":"SS-DB-STSSPRK-18C-REG","price":516.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43862099099829,"sku":"SS-DB-STSSPRK-18C-LNG","price":540.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag7C-45FRegular_ASL041072-050101_USP_2_775252a0-31d3-4956-96e4-1ea628259581.jpg?v=1785464745","url":"https:\/\/rockrn.com\/pt\/products\/sea-to-summit-spark-down-sleeping-bag-18-c","provider":"Rock+Run","version":"1.0","type":"link"}