Sea to Summit Spark Pro -9C Regular Sleeping Bag

The Sea to Summit Spark Pro -9C Regular is a high-performance down sleeping bag designed for ultralight backpacking and mountaineering. With a temperature rating of -9°C (EN Limit), it offers exceptional warmth-to-weight ratio, making it ideal for 3-4 season use. The bag features 850+ Loft ULTRA-DRY Down™ insulation, which provides superior loft and water resistance, ensuring reliable performance in damp conditions.

Advantages

Ultralight and compressible, the Spark Pro -9C Regular packs down to just 4.3 liters, saving valuable space in your pack. The tapered mummy shape reduces weight and improves thermal efficiency, while the vertical chest baffles and horizontal lower baffles prevent down migration and eliminate cold spots. The 1/2 length YKK #5 zipper with draft tube minimizes heat loss, and the draft collar seals in warmth around the neck.

Suitable for

• Ultralight backpacking and thru-hiking
• Alpine mountaineering and climbing
• Cold weather camping (down to -9°C)
• 3-4 season adventures

Key specifications

• Temperature Rating (EN Limit): -9°C (15°F)
• Temperature Rating (EN Comfort): -2°C (28°F)
• Temperature Rating (EN Extreme): -27°C (-17°F)
• Insulation: 850+ Loft ULTRA-DRY Down™
• Fill Weight: 400 g (14.1 oz)
• Shell Fabric: 10D Nylon
• Liner Fabric: 7D Nylon
• Shape: Tapered Mummy
• Zipper: 1/2 Length YKK #5
• Max User Height: 183 cm (72 inches)
• Packed Volume: 4.3 Liters
• Compression Sack Size: 2.5L - 8L
• Internal Girth (Chest): 155 cm (61 inches)
• Internal Girth (Hip): 135 cm (53 inches)
• Internal Girth (Foot): 102 cm (40 inches)

Recommendations

For optimal performance, pair this sleeping bag with a Sea to Summit sleeping pad and a dry compression sack. Store loosely in a large cotton sack to maintain loft. Avoid prolonged exposure to moisture; use a bivvy or tent for added protection.