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The Spark Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner, to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and no-frills design to provide cutting-edge performance.
Ultralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.
ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)
10D shell and 7D liner materials help to achieve the incredible lightweight and compact packed size
Includes lightweight Ultra-Sil compression bag and storage cell
Zipper-length trimmed for gram-saving performance:
10°C, 5°C, and -2°C have 1/3-length zippers
-8°C and -15°C have full-length side zippers
10°C and 5°C have sewn-through construction
-2°C has baffles in the torso and sewn through in the leg area
-8°C and -15°C are fully baffled
10°C , 5°C and -2°C – Contoured mummy
-8°C and -15°C – Broader mummy
|Spark I (5°C) Regular||Spark I (5°C) Long||Spark II (-2°C) Regular||Spark II (-2°C) Long||Spark III (-8°C) Regular||Spark III (-8°C) Long||Spark IV (-15°C) Regular||Spark IV (-15°C) Long||Liner Regular||Liner Long|
|Bag Series||Spark 1||Spark 1||Spark 2||Spark 2||Spark 3||Spark 3||Spark 4||Spark 4||Spark 0||Spark 0|
|Compressed Vol (ASTM Standard)||1.5 L||2.2 L||2.5 L||3.5 L||4.6 L||5.4 L||6.6 L||7.7 L||.9 L||1.3 L|
|Compression Sack||XXXS – 2.5L to 1L||XXXS – 2.5L to 1L||XXS – 3.3L to 1.3L||XXS – 3.3L to 1.3L||XS – 6L to 2L||XS – 6L to 2L||S – 10L to 3.3L||S – 10L to 3.3L||Stuff Sack||Stuff Sack|
|Fits Up To Height||183 cm||192 cm||183 cm||192 cm||183 cm||192 cm||183 cm||192 cm||183 cm||192 cm|
|Season Rating||Warm Weather||Warm Weather||2 Season||2 Season||2.5 Season||2.5 Season||3.5 Season||3.5 Season||Summer or Sleeping Bag Liner||Summer or Sleeping Bag Liner|
|Temperature Rating (EN Comfort / Lower Limit)||5ºC||5ºC||-2ºC||-2ºC||-8ºC||-8ºC||-15ºC||-15ºC||10ºC||10ºC|
|Women’s Temp Rating (EN Comfort)||9ºC||9ºC||4ºC||4ºC||-2ºC||-2ºC||-8ºC||-8ºC||14ºC||14°C|