❄️ Sleep Warm, Pack Light, Adventure Hard!
The Sea to Summit Spark Ultralight Down Sleeping Bag is a 0°F rated, ultralight mummy bag designed for serious 3-season backpackers and bikepackers. Featuring 850+ fill power Responsible Down Standard certified insulation treated with moisture-resistant Ultra-Dry technology, it combines premium warmth with ethical sourcing. Its 10D nylon shell with PFC-free DWR offers water resistance and breathability, while YKK #5 zippers and a contoured shape maximize comfort and durability. Weighing just 1.19 kg, it’s the perfect balance of lightweight performance and reliable cold-weather protection.
| Brand | Sea to Summit |
| Colour | yellow |
| Occupancy | 1 Person |
| Shape | Mummy |
| Seasons | Winter |
| Temperature Rating | 0°F |
| Age Range (Description) | Adult |
| Sport | Backpacking |
| Special Feature | Ultralight 10D shell with PFC-free DWR, Responsible Down Standard certified down insulation, and contoured mummy shape |
| Material | Nylon |
| Fill Material | Down |
| Closure Type | Zipper |
| Item Weight | 1.19 kg |
| Outer Material | Nylon |
| Fabric Type | Nylon |
| Size | Regular |
| Maximum Height Recommendation | 6 Feet |
| Global Trade Identification Number | 09327868158133 |
| Batteries Included | No |
| fill material type | Down |
| Insulation Material Type | Down |
| Length | 77.2 Inches |
| Width | 30.5 Inches |
| Weight | 2.62 Pounds |
| Material Type | Nylon |
| Features | Ultralight 10D shell with PFC-free DWR, Responsible Down Standard certified down insulation, and contoured mummy shape |
| Style | 0-degree |
| Manufacturer | Sea to Summit |
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