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-PFC Ultra-Dry Down treatment for maximum thermal performance Ultralight, breathable 10D nylon liner and a 10D shell with PFC-free 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 plow provide reliable, snag-free operation Baffle construction specific for each use: Hybrid box baffles in torso/sewn through in leg area (-1°C|30°F) Two Versions Spark -1°C BEST USE:Ultralight Backpacking PERFORMANCE:2 Season WEIGHT: 493g COMPRESSED VOLUME: 4.5L LOWER TEMP RATING:-1°C Spark -9°C BEST USE:Ultralight Backpacking PERFORMANCE:3 Season WEIGHT:730g COMPRESSED VOLUME:6.8L LOWER TEMP RATING:-9°C
