{"product_id":"spark-down-sleeping-bag-minus-18c","title":"Spark Down Sleeping Bag -18°C","description":"\u003ch3\u003eUltralight, High-Performance Warmth for Minimalist Adventures.\u003c\/h3\u003e\n\u003cp class=\"\"\u003eThe \u003cstrong\u003eSea to Summit Spark 850+ Down Sleeping Bag\u003c\/strong\u003e redefines ultralight performance. Filled with RDS-certified 850+ fill power goose down treated with non-PFAS Ultra-Dry Down™, it delivers an exceptional warmth-to-weight ratio and moisture resistance. A technical hood, full-length draft tube, and highly water-repellent hood and footbox fabric seal out wind and condensation, while the 10D nylon shell with non-PFAS DWR and super-breathable 10D liner minimize weight without sacrificing comfort. Hybrid baffle construction—box baffles in the torso and sewn-through in the legs—maximizes thermal efficiency where it’s needed most.\u003c\/p\u003e\n\u003cp class=\"\"\u003eWeighing just over 1lb (Regular) and compressing to as little as 2.5 liters, the Spark is ideal for fast-and-light missions where every gram counts. Includes an Ultra-Sil compression sack and storage cell for efficient packing.\u003c\/p\u003e","brand":"SEA TO SUMMIT","offers":[{"title":"Regular","offer_id":53688492556561,"sku":"Gravity_Gear S2143","price":899.0,"currency_code":"CAD","in_stock":false},{"title":"Long","offer_id":53688492589329,"sku":"Gravity_Gear S2144","price":929.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/2987\/6753\/files\/spark_down_sleeping_bag_-9c.png?v=1781909671","url":"https:\/\/gravitygearjasper.com\/products\/spark-down-sleeping-bag-minus-18c","provider":"Gravity Gear","version":"1.0","type":"link"}