{"product_id":"robens-spire-ii-4-c-sleeping-bag-lightweight-3-season-mummy-bag","title":"Robens Spire II -4°C Sleeping Bag | Lightweight 3-Season Mummy Bag","description":"\u003ch3\u003eEnhanced Warmth for Cooler Three-Season Adventures\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRobens Spire II -4°C Sleeping Bag\u003c\/strong\u003e is designed for campers, backpackers, and trekkers who need extra warmth when temperatures begin to drop. Featuring Robens' \u003cstrong\u003eOneThermo® synthetic insulation\u003c\/strong\u003e, a heat-efficient body-contoured shape, and a range of cold-weather features, the Spire II delivers reliable performance across spring, autumn, and mild winter conditions.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e3D hood\u003c\/strong\u003e, redesigned neck baffle, and insulated zip baffle work together to minimise heat loss, while the innovative \u003cstrong\u003eshark fin foot box\u003c\/strong\u003e provides additional insulation where it's needed most.\u003c\/p\u003e\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIncreased Warmth for Colder Nights\u003c\/strong\u003e\u003cbr\u003e→ Limit rating of -4°C for cooler conditions\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExcellent Warmth-to-Weight Ratio\u003c\/strong\u003e\u003cbr\u003e→ Body-contoured mummy design maximises thermal efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerforms When Damp\u003c\/strong\u003e\u003cbr\u003e→ Synthetic insulation continues to insulate in humid and wet conditions\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComfort-Focused Design\u003c\/strong\u003e\u003cbr\u003e→ Soft brushed lining improves comfort and moisture management\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdventure Ready\u003c\/strong\u003e\u003cbr\u003e→ Compression sack included for compact packing\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOneThermo® Synthetic Insulation\u003c\/h2\u003e\n\u003cp\u003eThe Spire II uses \u003cstrong\u003eOneThermo® insulation\u003c\/strong\u003e, providing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReliable warmth in cooler temperatures\u003c\/li\u003e\n\u003cli\u003eGood loft retention\u003c\/li\u003e\n\u003cli\u003eFast drying performance\u003c\/li\u003e\n\u003cli\u003eEffective insulation in damp conditions\u003c\/li\u003e\n\u003cli\u003eLong-lasting durability for regular outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIdeal for UK camping, trekking, backpacking, and shoulder-season adventures.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTemperature Ratings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eComfort:\u003c\/strong\u003e 2°C\u003cbr\u003e\u003cstrong\u003eLimit:\u003c\/strong\u003e -4°C\u003c\/p\u003e\n\u003cp\u003eSuitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpring camping\u003c\/li\u003e\n\u003cli\u003eAutumn adventures\u003c\/li\u003e\n\u003cli\u003eMountain camps\u003c\/li\u003e\n\u003cli\u003eBackpacking trips\u003c\/li\u003e\n\u003cli\u003eCool-weather wild camping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e3D Hood Profile\u003c\/strong\u003e\u003cbr\u003e→ Enhanced warmth around the head and neck\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRedesigned Neck Baffle\u003c\/strong\u003e\u003cbr\u003e→ Minimises heat loss and cold draughts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDifferentiated Hood Drawcords\u003c\/strong\u003e\u003cbr\u003e→ Easy adjustment in darkness\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShark Fin Foot Box\u003c\/strong\u003e\u003cbr\u003e→ Additional insulation around the feet\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull-Length Insulated Zip Baffle\u003c\/strong\u003e\u003cbr\u003e→ Prevents cold spots along the zip\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYKK Auto Lock Two-Way Zip\u003c\/strong\u003e\u003cbr\u003e→ Reliable operation and flexible ventilation\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnti-Snag Zip Guard\u003c\/strong\u003e\u003cbr\u003e→ Smooth opening and closing\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrushed Polyester Lining\u003c\/strong\u003e\u003cbr\u003e→ Soft-touch comfort with excellent moisture transport\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInternal Pocket\u003c\/strong\u003e\u003cbr\u003e→ Secure storage for valuables\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompression Stuff Sack Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHanging Loops for Drying \u0026amp; 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