Spark Ultralight -1C Sleeping Bag
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
Original: $319.00
-65%$319.00
$111.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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
