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

An ultralight three-season sleeping bag built for weight-conscious backpackers who won't compromise on warmth or moisture resistance.

The Sea to Summit Spark 7°C is a men's mummy-cut sleeping bag designed for three-season backpacking. RDS-certified 850+ fill power goose down with non-PFAS Ultra-Dry Down treatment delivers reliable thermal performance, while a 10D nylon shell with non-PFAS DWR finish and highly water-repellent hood and footbox fabric handle condensation and light moisture. 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

• Half-length YKK #5 side zipper with anti-snag zipper plough — reduces 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 (non-PFAS Ultra-Dry Down)

• Shell and liner: 10D Nylon; hood and footbox: 10D Nylon waterproof-breathable

• Shape: Mummy

• Fit: Men's Regular — body length up to 185 cm

• Shoulder circumference: 155 cm | Hip: 135 cm | Foot: 102 cm

• Weight: 363 g