Sea to Summit's Spark Ultralight Sleeping Bag is engineered to keep you warm at the lightest weight and smallest compressed size. Ultralight doesn't mean cramped; the Spark's snug mummy shape is designed to keep the heat in, but still gives you enough room to move comfortably after a long day on the trail. Ideal for fast-moving, backcountry explorers who don't want to carry a gram more than they need. Suitable for lightweight liners and summer getaways as well as warm, packable bags that'll see you through chilly winter nights. Designed with premium materials and a fuss-free focus on performance, these bags keep things simple without skimping on quality. 850+ FILL Power, RDS-certified Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions 10-Denier Nylon shell and lining 10-Denier Nylon waterproof-breathable hood and footbox Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight Spark 7C/45F & 1C/30F Primary zip - 1/2 length #5 with zip-plow and two sliders Spark -9C/15F & -18C/0F Primary zip - 3/4 length #5 with zip-plow and two sliders Vertical chest baffles, horizontal baffles, lower half and base SPARK 7C sewn through quilted construction throughout SPARK -1C/30Fbox wall baffles top half of bag and sewn through quilted construction lower half SPARK -9C & -18C box wall baffle construction throughout Spark 7C, -1C & -9C Standard front draft collar SPARK -18C Double draft collars Spark 7 & -1 can't be paired Spark -9 & -18: Pairs with Women's Sea to Summit bags QuiltLock System integrates with StS quilts Best Use: Ultralight Backpacking Comes With: Ultra-Sil compression bag and storage cell Insulation: Ultra-Dry Goose Down 850+ Loft Material(s):10-Denier Nylon shell and lining 10-Denier Nylon waterproof-breathable hood and footbox Shape: Mummy Fit: Fitted cut with generous footbox and technical hood BEST USE: Ultralight adventures PERFORMANCE: Small pack size WEIGHT: 510g
