If you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS-certified 850+ fillpower goose down treated with a non-PFC Ultra-Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super-breathable 10 denier liner fabric, while a 10D shell with a non-PFC DWR plus a highly water repellent hood and footbox fabric shed wind and condensation. The full-length zipper model can be zipped to an equivalent Women's Spark for comfort that couples can share.
- RDS-certified, 850+ fillpower goose down with a non-PFAS Ultra-Dry Down treatment for maximum thermal performance
- Ultralight, breathable 10D nylon liner and a 10D shell with non-PFAS DWR keeps the hood and footbox highly water resistant
- Technical hood, anatomical footbox and an ergonomic mummy shape - ultralight doesn't have to mean ultratight
- YKK #5 zippers with zipper plough provide reliable, snag-free operation
- Baffle construction specific for each use: Sewn through for lighter weight (7°C|45°F), Hybrid box baffles in torso/sewn through in leg area (-1°C | 30°F) or full box baffles for maximum warmth (-9°C | 15°F)
- Zipper length specific for each use: half-length (7°C|45°F and -1°C | 30°F) for ultralight packability; full-length side zip (-9°C | 15°F and -18°C | 0°F)
- Sea to Summit Guarantee is offered for the Lifetime of this product
- Best Use
Ultralight Backpacking - Comes With
40D recycled, bluesign APPROVED nylon compression bag - Insulation
RDS certified, 850+ non-PFAS Ultra-Dry Down - Shape
Mummy - Zip Options
YKK #5 zippers with snag free zipper plow
7°C Regular | |
Bag Weight | 363g |
Compressed Volume | 2.4 L |
Compression Sack | 2 L |
Fill Weight | 150 g |
Fits Up To Height | 185 cm |
Temperature Rating (ISO Lower Limit) | 7°C |
Women's Temp Rating (ISO Comfort) | 11°C |