FINAL SALE: This item cannot be returned or exchanged.
Highlights
SECOND SUMMIT: Let's give gear a second chance. Shop our expertly inspected, pre-owned gear delivered to you in like new condition and protected by the Sea to Summit Guarantee.
BEST USE: Ultralight Backpacking
PERFORMANCE: 3 Season
WEIGHT: 1lb 11.7oz | 784g
COMPRESSED VOLUME: 7L
LOWER TEMP RATING: 15°F | -9°C
Description
The Spark Pro has been optimized for comfort, versatility and light weight. Our highest-lofting down - 950+ fillpower RDS-certified goose down with a non-PFC Ultra-Dry Down treatment - is wrapped in extremely brea...
Product Details
- RDS-certified, 950+ fillpower goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
- Featherweight 10D nylon shell with non-PFC DWR, and a highly breathable 10D nylon liner for enhanced comfort
- Technical hood, anatomical footbox and an ergonomic mummy shape - ultralight doesn't have to mean ultratight
- Free-Flow Zip System: YKK #5 side zipper with zipper plow for reliable, snag-free operation. YKK #3 footbox and shoulder zipper for minimal additional weight
- Baffle construction specific for each use: Hybrid box baffles in torso/sewn through in leg area (-1°C|30°F) or full box baffles for maximum warmth (-9°C|15°F)
- Front draft collar is fitted around the neck and oversized at the shoulders to retain warmth
- Sea to Summit Guarantee is offered for the Lifetime of this product
Find Locally
Sea to Summit tests its sleeping bags for their temperature rating using the ISO 23537 test protocol. This test gives two key ratings: Lower Limit and Comfort Rating.
Lower Limit: The lowest temperature at which a man should stay warm.
Comfort Rating: The lowest temperature at which a woman should stay warm.
Sea to Summit Women’s-specific sleeping bags are listed using the Comfort Rating. Unisex bags are listed using the Lower Rating. For example, if the bag is rated at Lower Limit of 14°F | -10°C and Comfort rating of 27°F | -3°C, it should keep a woman warm down to 27°F | -3°C and a man warm down to 14°F | -10°C, if they are wearing warm clothes and using a good sleeping pad.
Remember: These ratings are just guidelines. Movement, weather, and your gear setup can all affect how warm you actually stay.
Pro Tip: Think of your sleeping bag, pad, and liner as a system. If you expect 28°F | -2°C weather, choose a sleeping bag rated for 23°F | -5°C, use a sleeping pad with an R-Value of 3 or more, and add a liner for extra warmth.
Description
The Spark Pro has been optimized for comfort, versatility and light weight. Our highest-lofting down - 950+ fillpower RDS-certified goose down with a non-PFC Ultra-Dry Down treatment - is wrapped in extremely breathable 10D fabrics. The Free-Flow Zip system ensures maximum ventilation and the flexibility to open the bag flat as a quilt. Zip a Spark Pro to a Women's Spark and share the comfort with your companion.
- RDS-certified, 950+ fillpower goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
- Featherweight 10D nylon shell with non-PFC DWR, and a highly breathable 10D nylon liner for enhanced comfort
- Technical hood, anatomical footbox and an ergonomic mummy shape - ultralight doesn't have to mean ultratight
- Free-Flow Zip System: YKK #5 side zipper with zipper plow for reliable, snag-free operation. YKK #3 footbox and shoulder zipper for minimal additional weight
- Baffle construction specific for each use: Hybrid box baffles in torso/sewn through in leg area (-1°C|30°F) or full box baffles for maximum warmth (-9°C|15°F)
- Front draft collar is fitted around the neck and oversized at the shoulders to retain warmth
- Sea to Summit Guarantee is offered for the Lifetime of this product
Tech specs
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Best UseUltralight Backpacking
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Comes WithUltra-Sil™ Compression Bag & Storage Cell
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InsulationRDS certified, 950+ PFC free Ultra-Dry Down
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ShapeMummy
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Zip OptionsFree-Flow zipper system
-9°C Regular | -9°C Long | -1°C Long | -1°C Regular | |
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Bag Weight | 1lb 11.7oz 784g | 1lb 14.4oz 861g | 1lb 7.7oz 672g | 1lb 5.8oz 619g |
Compressed Volume | 7.0 L7.0 L | 7.9 L7.9 L | 5.5 L5.5 L | 5.3 L5.3 L |
Compression Sack | 13 L13 L | 13 L13 L | 8 L8 L | 8 L8 L |
Fill Weight | 16.9 oz 480 g | 19.4 oz 550 g | 12.6 oz 356 g | 10.9 oz 310 g |
Fits Up To Height | 6 ft 1 in 185 cm | 6 ft 6 in 198 cm | 6 ft 6 in 198 cm | 6 ft 1 in 185 cm |
Temperature Rating (ISO Lower Limit) | 15°F -9°C | 15°F -9°C | -30°F -1°C | -30°F -1°C |
Women's Temp Rating (ISO Comfort) | 27°F -3°C | 27°F -3°C | 37°F 3°C | 37°F 3°C |