Sale

Sea to Summit

ASP1-R

Sea to Summit Spark Series - Lightweight Down Sleeping Bag

 
Type
Size

We accept Afterpay and Zip ($100min/$1000max)

Ultra-light and technical sleeping bags that keep you warm, without weighing you down.

Sea to Summit's Spark Series spans everything from an ultralight liner to an expedition weight mid-winter bag.

Sea to Summit has now created a women's specific version of the Spark Series. You can learn all about the newFlame Series (Women's specific bag) here.

The impressive performance is the result of 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.

The 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.

Size Variation

 Type User Height Weight Fill Weight Chest Hip Foot
SP I - Regular Up to 183cm 340g 180g 150cm 130cm 88cm
SP I - Long Up to 198cm 385g 205g 158cm 138cm 94cm
SP II - Regular Up to 183cm
490g 300g 150cm 130cm 88cm
SP II - Long Up to 198cm 560g 345g 158cm 138cm 94cm
SP III - Regular Up to 183cm 665g 430g 155cm 135cm 94cm
SP III - Long Up to 198cm 745g 485g 162cm 142cm 100cm
SP IV - Regular Up to 183cm 880g 620g 155cm 135cm 94cm
SP IV - Long Up to 198cm 985g 700g 162cm 142cm 100cm

 

Temperature Rating

Type Comfort Lower Limit Extreme
SP I 9℃ 5℃ -9℃
SP II 4℃ -2℃ -18℃
SP III -2℃ -8℃ -26℃
SP IV -8℃ -15℃ -36℃

 

EN Rating

The EN13537 is a European standard for sleeping bags that provides three temperature levels to help guide you when choosing a bag.

Comfort: The temperature at which a standard woman can expect to sleep comfortably in a relaxed position. If you are female or consider yourself a cold sleeper, use this rating to decide the coldest temperature the sleeping bag is suitable for. We emphasise the Comfort temperature for our women’s specific sleeping bags.

Lower Limit: The temperature at which a standard man can sleep for eight hours in a curled position without waking. If you consider yourself a warm sleeper, use this rating to decide the coldest temperature the sleeping bag is suitable for. We emphasise the Lower Limit temperature for all our unisex sleeping bags.

Extreme: This is a survival only rating for a standard woman. Between the lower limit and the extreme rating, a strong sensation of cold must be expected and there is a risk of health damage due to hypothermia. This is an extreme survival rating only; we do not recommend you rely on this rating for normal use.

  • 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
  • Sewn-through construction minimises weight
  • Sewn-through vertical baffles on chest optimise the position of down to prevent it from moving during use
  • ½ zip with single slider aids access while keeping weight to a minimum
  • Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency
  • Includes lightweight Ultra-Sil Nano compression bag for compact storage
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 340g
  • Fill Weight: 180g
  • Internal Chest Circumference: 150cm
  • Internal Hip Circumference: 130cm
  • Internal Foot Circumference: 88cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 385g
  • Fill Weight: 205g
  • Internal Chest Circumference: 158cm
  • Internal Hip Circumference: 138cm
  • Internal Foot Circumference: 94cm

 

  • 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
  • Vertical box baffles in the torso area accommodate extra down and boost warmth around the core, vertical baffles on chest optimises positions of down to prevent it moving during use
  • The lower part of the bag uses a sewn-through horizontal baffle construction to minimise weight
  • ½ zip with two sliders aids access and allows ventilation from mid-section of bag
  • Draft tube prevents heat loss through the zipper
  • Includes hood draft collar
  • Includes lightweight Ultra-Sil™ Nano compression bag for compact storage
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 490g
  • Fill Weight: 300g
  • Internal Chest Circumference: 150cm
  • Internal Hip Circumference: 130cm
  • Internal Foot Circumference: 88cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 560g
  • Fill Weight: 345g
  • Internal Chest Circumference: 158cm
  • Internal Hip Circumference: 138cm
  • Internal Foot Circumference: 94cm

  • 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 optimise positions of down to prevent it from 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
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 665g
  • Fill Weight: 430g
  • Internal Chest Circumference: 155cm
  • Internal Hip Circumference: 135cm
  • Internal Foot Circumference: 94cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 745g
  • Fill Weight: 485g
  • Internal Chest Circumference: 162cm
  • Internal Hip Circumference: 142cm
  • Internal Foot Circumference: 100cm

  • 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 optimise positions of down to prevent it from 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
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 880g
  • Fill Weight: 620g
  • Internal Chest Circumference: 155cm
  • Internal Hip Circumference: 135cm
  • Internal Foot Circumference: 94cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 985g
  • Fill Weight: 700g
  • Internal Chest Circumference: 162cm
  • Internal Hip Circumference: 142cm
  • Internal Foot Circumference: 100cm