Sea to Summit Spark 7C Long Sleeping Bag

The Sea to Summit Spark 7C Long is a lightweight, high-performance sleeping bag designed for 1-2 season camping in spring and summer. Featuring RDS-certified 850+ Loft ULTRA-DRY Down insulation, it offers exceptional warmth-to-weight ratio and water resistance. The tapered mummy shape reduces weight and pack size, while the #3 YKK half zip provides easy ventilation. Ideal for backpackers and minimalist adventurers.

Advantages

Ultra-lightweight and compressible, the Spark 7C Long packs down to just 2.9 liters. The ULTRA-DRY Down treatment ensures loft retention even in damp conditions. Sewn-through baffles minimize weight and maximize warmth. Includes an Ultra-Sil compression sack and large storage cell for convenient packing.

Suitable for

• Spring and summer camping
• Backpacking and thru-hiking
• Warm-weather adventures where weight and space are critical

Key specifications

• Temperature Rating (EN Comfort): 12°C (54°F)
• Temperature Rating (EN Limit): 7°C (45°F)
• Temperature Rating (EN Extreme): -7°C (19°F)
• Insulation: RDS 850+ Loft ULTRA-DRY Down
• Fill Weight: 310 g (10.9 oz)
• Shell Fabric: 10D Nylon
• Liner Fabric: 10D Nylon
• Shape: Tapered Mummy
• Zipper: #3 YKK Half Zip, Left Side
• Max User Height: 198 cm (6 ft 6 in)
• Packed Dimensions: 14 x 28 cm (5.5 x 11 in)
• Packed Volume: 2.9 L
• Construction: Sewn-through baffles
• Included Accessories: Ultra-Sil compression sack, large storage cell
• RDS Certified: Yes

Recommendations

For optimal performance, store the sleeping bag loosely in the large storage cell to maintain loft. Use a sleeping pad with appropriate R-value for your conditions. The Spark 7C Long is best suited for temperatures above 7°C (45°F) for comfortable sleep.