Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimizing packed weight and size. The Spark™ Series spans everything from an ultralight liner to an expedition weight mid-winter bag. While the end usage is very different, they reflect a design ethos of matching weather conditions to the lightest bag possible. The secret to the impressive performance is a combination of premium materials and careful design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics, set the stage for superior performance. These materials are combined with a contoured mummy design for efficient insulation, and that mummy design is then tweaked for each model to best fit the use scenario.
Features • Ultralight 7D and 10D fabrics for minimal weight and packed size • RDS 850+ Loft Premium Goose ULTRA-DRY Down™ for maximum insulation value • Contoured mummy shape for comfort and efficient insulation • Vertical chest baffles prevent down migration and cold spots • NOTE: This bag is not designed to zip with another • Uses a full box baffle construction to accommodate extra down and reduce cold spots • Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room • Vertical baffles in chest optimize position of down to prevent it moving during use • Full side zip with two sliders provides easy access and extra ventilation options • Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed
Specifications • Max user height: < 183 cm / 6' • Girth: Shoulder: 155 cm (61“) Hip: 135 cm (53“) Foot: 94 cm (37“) • Fill weight: 15 oz / 430g • Weight: 1 lb 6 oz / 618g • Temperature: Comfort: 29°F / -2°C Lower limit: 18°F / -8°C Extreme: -15°F / -26°C. • 2.5 Season
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