{"product_id":"sea-to-summit-spark-30f-1c-down-sleeping-bag","title":"Sea to Summit Spark 30°F \/ -1°C Down Sleeping Bag – Ultralight 850+ Fill","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Sea to Summit Spark 30°F \/ -1°C is a premium ultralight down sleeping bag built for serious backpacking and weight-conscious trekking. Designed for fast-moving adventures where every gram matters, it combines 850+ fill power responsibly sourced down with an ultra-light technical shell for maximum warmth-to-weight efficiency.\u003c\/p\u003e\n\n\u003cp\u003eWith a comfort range around -1°C, the Spark 30 is ideal for spring to autumn trekking, high summer mountain camps, and lightweight wild camping across Europe. Its tapered mummy design minimises bulk while retaining thermal efficiency, making it a strong choice for alpine routes and long-distance trails.\u003c\/p\u003e\n\n\u003cp\u003eThis is not a casual campsite bag. It is built for performance, packability and serious backcountry use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUltralight 3-season down sleeping bag\u003c\/li\u003e\n\u003cli\u003e30°F \/ -1°C temperature rating\u003c\/li\u003e\n\u003cli\u003e850+ fill power Responsible Down Standard (RDS) certified down\u003c\/li\u003e\n\u003cli\u003eUltra-light 10D nylon shell and lining\u003c\/li\u003e\n\u003cli\u003ePFC-free water-resistant down treatment\u003c\/li\u003e\n\u003cli\u003eTechnical tapered mummy construction\u003c\/li\u003e\n\u003cli\u003eYKK zip with anti-snag design\u003c\/li\u003e\n\u003cli\u003eCompact pack size for fast and light travel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature Rating: 30°F \/ -1°C\u003c\/li\u003e\n\u003cli\u003eSeason Rating: 3 Season\u003c\/li\u003e\n\u003cli\u003eInsulation: 850+ Fill Power Down (RDS Certified)\u003c\/li\u003e\n\u003cli\u003eShape: Performance Mummy\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10D Nylon\u003c\/li\u003e\n\u003cli\u003eLining: 10D Nylon\u003c\/li\u003e\n\u003cli\u003eOccupancy: 1 Person\u003c\/li\u003e\n\u003cli\u003eIntended Use: Backpacking, Trekking, Mountain Travel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eUse \u0026amp; Care\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAlways use with an insulated sleeping mat\u003c\/li\u003e\n\u003cli\u003eAir after each trip\u003c\/li\u003e\n\u003cli\u003eStore loosely in a large storage sack\u003c\/li\u003e\n\u003cli\u003eAvoid long-term compression\u003c\/li\u003e\n\u003cli\u003eWash using down-specific detergent when required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cp\u003eBest suited for experienced backpackers prioritising weight savings. Down insulation provides exceptional warmth-to-weight performance but requires proper moisture management in damp environments. Always follow local wild camping regulations when camping overnight.\u003c\/p\u003e","brand":"Wild Living Company","offers":[{"title":"Default Title","offer_id":53422229061959,"sku":null,"price":520.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/0037\/6647\/files\/sea-to-summit-spark-30f-down-sleeping-bag-front-view.jpg?v=1772219508","url":"https:\/\/wildlivingcompany.com\/products\/sea-to-summit-spark-30f-1c-down-sleeping-bag","provider":"Wild Living Company","version":"1.0","type":"link"}