Sea to Summit Spark -9C Down Sleeping Bag Long beluga black

Ultralight mummy bag engineered for weight-conscious backcountry users operating in cold conditions.

The Sea to Summit Spark -9C Down Sleeping Bag combines 850+ loft RDS-certified Ultra-Dry Goose Down with box wall baffle construction to deliver reliable thermal performance at a limit rating of -9°C. The 10-denier nylon shell and lining keep weight minimal, while the Long sizing accommodates users up to 198 cm. Waterproof-breathable hood and footbox panels add targeted protection where moisture exposure is highest.

Features

• 850+ fill power RDS-certified Ultra-Dry Goose Down with moisture-resistant treatment

• Box wall baffle construction throughout for consistent loft and thermal efficiency

• Waterproof-breathable hood and footbox for targeted weather protection

• 3/4-length #5 zip with zip-plow and two sliders for ventilation control

• Standard front draft collar to retain warmth at the chest

• QuiltLock system compatible with Sea to Summit quilts; pairs with Women's Sea to Summit bags

Technical Specifications

• Temperature rating: Comfort -2°C / Limit -9°C

• Insulation: Ultra-Dry Goose Down, 850+ loft

• Shell and lining: 10-denier nylon

• Shape: Mummy

• Body length: 198 cm (Long)

• Weight: 786 g