Sea to Summit Spark Down Sleeping Bag -1C|30F - Regular | Beluga

If you’re counting every gram but still want a restful night’s sleep, the Spark is probably the right sleeping bag for you.

Filled with RDS-certified goose down with a fill power of 850+ that’s PFAS-free and treated with Ultra-Dry Down, the Spark features a technical hood and a zipper cover to lock in warmth.

Features

• RDS-certified goose down fill with a fill power of 850+ and PFAS-free Ultra-Dry Down treatment for maximum performance
• Ultra-lightweight, breathable 10D nylon lining and 10D outer material with a PFAS-free DWR coating ensure that the hood and footbox are extremely water repellent
• Technical hood, anatomical footbox, and ergonomic mummy shape—ultra-light doesn’t have to mean ultra-tight
• YKK #5 zipper with zip plow and two sliders ensures reliable, snag-free operation.
• Contour Fit: A tailored cut with a spacious footbox and
  a technical hood to maximize warmth while minimizing weight and bulk.
• Hollow-chamber construction: Chamber construction in the torso area and quilted construction in the leg area.
• Zipper coupler: No

Materials

• Outer material: 100% Nylon
• Lining: 100% nylon
• Down fill: 90/10 goose down
• Packing sack: 100% nylon (without trim)