Sea to Summit Spark 7C Down Sleeping Bag Long beluga black

Three-season warmth in a gram-conscious mummy bag built to resist condensation and pack down small.

The Sea to Summit Spark 7°C is a mummy-shaped sleeping bag designed for backpackers and outdoor professionals who prioritise pack weight without sacrificing thermal performance. RDS-certified 850+ fill power goose down with non-PFAS Ultra-Dry Down treatment delivers reliable warmth, while a 10D nylon shell with non-PFAS DWR finish and highly water-repellent hood and footbox fabric resist condensation and wind. A super-breathable 10D nylon liner maintains a comfortable sleep environment across varying conditions.

Features

• RDS-certified 850+ fill power goose down with non-PFAS Ultra-Dry Down treatment

• 10D nylon shell with non-PFAS DWR finish; highly water-repellent hood and footbox fabric

• Technical hood, anatomical footbox, and ergonomic mummy shape

• YKK #5 zipper with anti-snag zipper plough; half-length side zipper for reduced weight and pack size

• Sewn-through baffle construction

• Includes 40D recycled bluesign® approved nylon compression bag

Technical Specifications

• Comfort temperature: 7°C

• Fill: RDS-certified 850+ fill power goose down

• Shell and liner: 10-Denier Nylon

• Shape: Mummy

• Body length: 198 cm (Long)

• Shoulder circumference: 165 cm

• Hip circumference: 145 cm

• Foot circumference: 112 cm

• Weight: 387 g