Features
- Best use for Ultralight Backpacking
- 2 Season
- Weight: 1lbs, 3.8oz | 560g
- Compressed volume: 3.5 Liters
- Lower temp rating: 28ºF | -3ºC
- 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
- 1/3-length zipper
- Baffles in the torso and sewn through in the leg area
- Contoured mummy
Product Description
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The Sea to Summit Spark Ultralight Mummy Sleeping Bag 28 Degree is a high-performance sleeping bag designed for minimalist adventurers who prioritize light weight and compact size without sacrificing warmth and comfort. 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.













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