Sea to Summit Spark Down Sleeping Bag 15°F/-9°C - Unisex

Ultralight and packable performance sleeping bag with increased breathability in shell and liner fabrics.

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 models can be zipped to an equivalent Women's Spark for comfort that couples can share.

Features
• Best use: Ultralight Backpacking
• Comes with: 40D recycled, bluesign® APPROVED nylon compression bag
• 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: 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)

Materials
• Insulation: RDS certified, 850+ non-PFAS free Ultra-Dry Down

Specifications
• Shape: Mummy
• Performance: Warm Climate
• Lower Temp Rating: 15°F/-9°C