Sea to Summit Spark -9C Women's Regular Sleeping Bag

The Sea to Summit Spark -9C Women's Regular is a premium 3-season mummy sleeping bag designed for female adventurers who demand lightweight warmth and packability. Featuring 850+ Loft Ultra-Dry Down™ insulation and a women's-specific cut, it delivers exceptional comfort down to -2°C (28°F) and a limit of -9°C (16°F). The bag is RDS certified and uses PFC-free down treatment, ensuring ethical sourcing and environmental responsibility.

Advantages

Ultra-lightweight and compressible, the Spark -9C packs down to just 5.3 liters, making it ideal for backpacking and trekking. The women's-specific shape provides extra insulation in the footbox and torso, while the left-hand zipper and zip coupling allow pairing with another Sea to Summit bag for added versatility. The 10D nylon shell and 7D nylon liner are both durable and soft against the skin.

Suitable for

• Women backpackers and hikers seeking a lightweight 3-season bag
• Camping in temperatures from -2°C to -9°C
• Adventurers who value packability and ethical down sourcing

Key specifications

• Temperature Rating (Comfort): -2°C (28°F)
• Temperature Rating (Limit): -9°C (16°F)
• Temperature Rating (Extreme): -27°C (-17°F)
• Fill Type: 90/10 Premium Duck Down, 850+ Loft Ultra-Dry Down™
• Fill Weight: 430 g
• Shell Fabric: 10D Nylon
• Liner Fabric: 7D Nylon
• Shape: Mummy (Women's Specific)
• Zipper Side: Left-hand
• Max User Height: 170 cm (5 ft 7 in)
• Shoulder Girth: 150 cm (59 in)
• Packed Volume: 5.3 L
• Insulation Treatment: RDS Certified, PFC-free Ultra-Dry Down™
• Baffle Construction: Box Baffle (Torso), Sewn-through (Lower)
• Included Accessories: Ultra-Sil™ Compression Sack, Storage Cell
• Zip Coupling: Yes (Compatible with other Sea to Summit bags)
• Season Rating: 3-Season

Recommendations

For optimal performance, pair with a Sea to Summit sleeping pad and use the included compression sack to minimize pack volume. Store loosely in the storage cell to maintain loft.