{"product_id":"sea-to-summit-spark-15-f-ultralight-down-sleeping-bag-double","title":"Sea to Summit Spark 15°F Ultralight Down Sleeping Bag – Double","description":"\u003ch2\u003eUltralight warmth for wherever the trail leads\u003c\/h2\u003e\n\u003cp\u003eThe Sea to Summit Spark 15°F Ultralight Down Sleeping Bag in Double offers serious warmth at a featherweight, making it a versatile choice for backpacking, bikepacking, and multi-day tours. Built around a contoured mummy shape, it minimizes cold spots while preserving a natural sleeping position, so you can wake up ready for the next push. The bag pairs high-loft 850+ fill power down with moisture-aware treatment to help loft and performance stay strong in rugged, damp environments without relying on harsh chemicals.\u003c\/p\u003e\n\u003ch3\u003eKey reasons it stands out\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e15°F (-9°C) rating targets two-season comfort for backpacking and cycling trips.\u003c\/li\u003e\n  \u003cli\u003e850+ fill power down is RDS certified and treated with Ultra-Dry Down to improve moisture tolerance while retaining loft.\u003c\/li\u003e\n  \u003cli\u003eUltralight 10D shell with a PFC-free DWR helps keep the hood and footbox resistant to light moisture, while a breathable liner enhances comfort.\u003c\/li\u003e\n  \u003cli\u003eFull box baffles, a contoured mummy shape, and a reliable YKK #5 zipper ensure warmth, stability, and snag-free operation.\u003c\/li\u003e\n  \u003cli\u003eIncludes practical extras: Ultra-Sil compression sack and a storage cube for efficient packing and maintenance.\u003c\/li\u003e\n  \u003cli\u003eAvailable in Regular, Long, and Double sizes with clear height recommendations for a natural sleeping posture.\u003c\/li\u003e\n  \u003cli\u003eSea to Summit offers a lifetime warranty against defects in materials or workmanship.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTwo bulleted lists for quick scanning\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWeight-conscious warmth: Combines a low-profile shell with high-loft down to deliver warmth without bulk.\u003c\/li\u003e\n  \u003cli\u003eMoisture-resilient design: Ultra-Dry Down and RDS-certified down help preserve loft when conditions get damp.\u003c\/li\u003e\n  \u003cli\u003eDurable, easy-care construction: PFC-free DWR, breathable liner, and snag-free zipper operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n  \u003cli\u003eBackpacking versatility: Suitable for 2-season use on trails and bike routes.\u003c\/li\u003e\n  \u003cli\u003eTouring-friendly fit: Contoured shape avoids pinching, aligning with a natural sleep stance for longer trips.\u003c\/li\u003e\n  \u003cli\u003ePackability on the move: Comes with a compact sack and a storage cube for organized carry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor durability, Sea to Summit backs this bag with a lifetime warranty. While no sleeping bag can guarantee outcomes, the Spark is designed to help you stay warm and comfortable in the conditions implied by its temperature rating, so you can focus on the journey rather than the gear.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What sizes are available for the Sea to Summit Spark 15-Degree Ultralight Down Sleeping Bag?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Available in Regular, Long, and Double; Regular up to 6'0\", Long up to 6'6\", Double up to 6'6\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this bag address moisture and loft while traveling?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Down insulation uses Ultra-Dry treatment and RDS-certified 850+ fill to help loft and warmth when damp.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sea to Summit","offers":[{"title":"Default Title","offer_id":41896769028176,"sku":"B0CTD46JKQ","price":1970.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/9645\/8576\/files\/sea-to-summit-spark-regular-closed-hood.jpg?v=1765487180","url":"https:\/\/canadawildco.com\/products\/sea-to-summit-spark-15-f-ultralight-down-sleeping-bag-double","provider":"Canada WildCo. | Hunting Gear, Fishing Equipment \u0026 Outdoor Essentials for the Canadian Wild","version":"1.0","type":"link"}