Sea to Summit Spark Pro 900+ Down Sleeping Bag -1C|30F - Regular | Beluga

The Spark Pro down sleeping bag has been optimized for comfort, versatility, and low weight.

Features

• RDS-certified goose down with a fill power of 900+ and PFC-free Ultra-Dry down treatment for maximum performance
• Feather-light 10D nylon outer material with a PFC-free DWR coating and a highly breathable 10D nylon inner fabric for even greater comfort
• Technical hood, anatomical footbox, and ergonomic mummy shape—ultra-light doesn’t have to mean ultra-tight
• Free Flow zipper system: YKK #5 side zipper with anti-jam protection for reliable, smooth opening and closing. YKK #3 foot and shoulder zippers for minimal added weight
• Vertical chest chambers, horizontal chambers in the lower half and at the base, continuous box-shaped chamber construction
• The front thermal collar wraps around the neck and has a wider cut at the shoulders to trap heat.