Spark Pro

The Spark down sleeping bag from Sea to Summit has been designed for those focused on keeping their pack as light as possible without compromising sleep quality. The Pro version features Sea to Summit's Free-Flow Zip system and premium 950+ loft goose down - making this Sea to Summit's lightest bag without any trade off in features. The design includes a technical hood and a draft tube along the zipper to help trap heat. A breathable 10-denier liner enhances comfort, while the 10D shell fabric, treated with DWR (Durable Water Repellency), helps block wind and moisture. The dual-zip design and shoulder snaps means this bag can be worn like a cosy wrap around camp on those colder mornings.

Spark Pro Down Sleeping Bag Features

• 900+ fillpower RDS-certified goose down with non-PFAS Ultra-Dry Down treatment for maximum thermal performance
  
• Featherweight 10D nylon shell with non-PFAS DWR and highly breathable 10D nylon liner
  
• Free-Flow Zip system opens flat as a quilt; compatible with the Women's Spark for a double setup
  
• YKK #5 side zipper with zipper plow for snag-free operation; YKK #3 footbox and shoulder zipper
  
• Vertical chest baffles, horizontal lower baffles, and box wall baffle construction throughout
  
• Fitted front draft collar, oversized at the shoulders, to retain warmth at the neck
  
• Anatomical footbox and ergonomic mummy shape for warmth without restriction