Spark -1C/30F Down

The Sea to Summit sleeping Spark -1C/15F Down bag is ideal for adventurers who prioritise comfort when expedition conditions become extreme.

The shape of this design has been refined to fit your body shape as closely as possible, with a redesigned hood and improved zips. Ultra-lightweight, it offers an exceptional weight-to-warmth ratio, with a fill power of 850+. Compact and minimalist, this rucksack is perfect for long hikes and offers an excellent balance between capacity and performance.

The sarcophagus shape helps to retain as much warmth as possible; it is also made fromRDS 850 CUIN down that has undergone a treatment Ultra-Dry™ to make it durable in terms of moisture resistance, ensuring it retains its performance in all conditions. Its very lightweight 10D Nylon construction ensures it takes up minimal space and offers good breathability. For your comfort, the Spark features stitched panels across the torso to prevent it from slipping during the night. This design features a half-length zip and a seal built into the zip to prevent heat loss.