SEA TO SUMMIT Spark Down Sleeping Bag

The Spark sleeping bag series from Sea to Summit is the ideal solution for those looking for ultralight, premium-quality products that provide comfortable, restful sleep.

Spark sleeping bags are filled with 850+ fill power goose down sourced from controlled farms and certified to the Responsible Down Standard (RDS). The down is additionally treated with a hydrophobic finish that prevents moisture absorption, ensuring excellent thermal insulation and outstanding sleeping comfort. The mummy-shaped Spark features a technical hood and a thermal zip baffle to protect against the loss of valuable heat. The inside of the sleeping bag is made of a pleasant, breathable material, while the outer layer, like the down, is treated with an eco-friendly, hydrophobic, PFC-free finish. Reinforcements in the hood and foot areas protect against wind and moisture. Models in the Spark series feature a full-length zipper, allowing them to be joined with the women's version – Spark Lady.

Key features:

• RDS-certified 850+ fill power goose down with PFC-free Ultra-Dry Down treatment, providing excellent thermal insulation.
• Lightweight, breathable nylon lining and an outer layer with a PFC-free water-repellent finish effectively protect against moisture.
• Ergonomic mummy shape with a technical hood and anatomically designed foot area – an ultralight sleeping bag that does not restrict movement.
• YKK #5 zippers with an anti-snag system ensure reliable use.
• Varied baffle construction:

Stitched-through chambers in the lighter version (7°C | 45°F),

Hybrid construction with stitched-through chambers in the torso and legs (–1°C | 30°F),

Fully baffled chambers in the warmest version (–9°C | 15°F)