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Spark SpIV Sleeping Bag -15°C

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Spark SpIV Sleeping Bag -15°C

SKU
SEA SPARK SP4 SBAG 2019
$664.97
$949.95 Save 30%

Sleeping Bag Sizing

  Upper Diameter (Cm) Middle Diameter (Cm) Lower Diameter (Cm) Max User Height (Cm)
Regular 152 146 102 <183
Regular-Wide 172 161 122 <183
Long 162 157 108 <192

 

 

Saving only apply to SELECTED colours

The Sea To Summit Spark SpIV Sleeping Bag is ultra-light and technical, the Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size. With top quality 850+FP down and a cozy mummy bag fit, the Sea to Summit Spark SpIV -15°C Sleeping Bag is one of the warmest sleeping bags we've seen for under 1kg. EN Rated to -15°C, this ultralight sleeping bag is suitable for year round use. The Spark IV also comes in a longer length, perfect for tall hikers. 

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.

Sea To Summit's ULTRA-DRY Down™ water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down. All Sea to Summit Down Sleeping Bags use Responsible Down Standard (RDS) certified down. The ULTRADRY Down™ protection also makes the Spark™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option.

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
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 on chest optimises positions 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
Includes lightweight Ultra-Sil™ Nano compression bag for compact storage

The Sea To Summit Spark SpIV Sleeping Bag is ultra-light and technical, the Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size. With top quality 850+FP down and a cozy mummy bag fit, the Sea to Summit Spark SpIV -15°C Sleeping Bag is one of the warmest sleeping bags we've seen for under 1kg. EN Rated to -15°C, this ultralight sleeping bag is suitable for year round use. The Spark IV also comes in a longer length, perfect for tall hikers. 

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.

Sea To Summit's ULTRA-DRY Down™ water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down. All Sea to Summit Down Sleeping Bags use Responsible Down Standard (RDS) certified down. The ULTRADRY Down™ protection also makes the Spark™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option.

 

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
  • 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 on chest optimises positions 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
  • Includes lightweight Ultra-Sil™ Nano compression bag for compact storage

Specs

MATERIALS: Shell: 100% Nylon, Lining: 100% Nylon

PRIMARY FILLING MATERIAL: Goose down (Min. 90% Down) RDS 850+ Loft

STUFF SACK: 100% Nylon excluding trims

FILL WEIGHT: Regular - 620 G | Long - 700 G 

WEIGHT: Regular - 880 G | Long - 985 G

RECOMMENDED USER HEIGHT: Regular (up to 183 CM) | Long (up to 198 CM)

INTERNAL CHEST CIRCUMFERENCE: Regular - 155 CM | Long - 162 CM

INTERNAL HIP CIRCUMFERENCE: Regular - 130 CM | Long -  142 CM

INTERNAL FOOT CIRCUMFERENCE: Regular - 94 CM | Long - 100 CM

COMPRESSION SACK VOLUME (COMPRESSED): 10 to 3.3 Litres

TEMP. RATING: Comfort -8°C | Lower Limit -15°C | Extreme Limit -36°C

*EN13537 Comfort Rating (defined as the temperature at which a standard woman can expect to sleep comfortably in a relaxed position)
*EN13537 Lower Limit Rating (defined as the temperature at which a standard man can sleep for 8 hours in a curled position)
 

 

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