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. It features RDS-certified 850+ fill-power goose down with a non-PFAS Ultra-Dry Down treatment for superior warmth and moisture resistance. 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 a non-PFAS DWR, and water-repellent materials in the hood and footbox help block wind and moisture. The full-length zip version can also connect with a compatible Women’s Spark bag, making it a great option for couples.
Spark Down Sleeping Bag Features
- 850+ loft goose down treated with Ultra-Dry Down treatment to prevent moisture absorption
- 100% of the down used has been independently certified to the Responsible Down Standard (RDS)
- Ultralight and breathable face fabric helps with moisture regulation
- Technical hood, anatomical footbox and ergonomic mummy shape for excellent warmth-to-weight ratio
- Zipper length specific for each use case: half-length for ultralight packability on the lighter bags, and full-length for layer management cold weather on the warmer bags
- 10 denier polyester shell with a DWR (Durable Water Repellent) finish blocks wind and moisture
- 10 denier polyester liner provides soft next-to-skin comfort
TECH SPECS
SIZE GUIDE
Questions & Answers
Have a Question?
Be the first to ask a question about this.