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Sea to Summit Spark SpIV 2019

Sea to Summit Spark SpIV 2019

Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size. 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...Read More


  • 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
  • Read More
RRP $789.00-$819.00

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In Stock
EN13537 Temp Rating Comfort -8°C | 18°F
EN13537 Temp Rating Lower Limit -15°C | 5°F
EN13537 Temp Rating Extreme -36°C | -33°F
Compression Sack SizeSmall (10L to 3.3L)
Dimensions (CM)Long227 x 89Regular212 x 83
Fill WeightLong700 gramsRegular620 grams
Internal Chest CircumferenceLong162cmRegular155cm
Internal Hip CircumferenceLong142cmRegular135cm
Recommended User HeightLongup to 198cmRegularup to 183cm