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.
Features:
- 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:
- 5°F have full-length side zippers that can be coupled to a Flame sleeping bag with a full-length zipper
- Baffle construction:
- 5°F are fully baffled
- Shape:
- 5°F - Broader mummy
Tech Specs:
| 5°F REGULAR | 5°F LONG | LINER REGULAR | LINER LONG | |
|---|---|---|---|---|
| BAG SERIES | Spark 4 | Spark 4 | Spark 0 | Spark 0 |
| BAG WEIGHT | 1lb 15oz | 2lbs 2.7oz | 7.9oz | 9.2oz |
| COMPRESSED VOL (ASTM STANDARD) | 6.6 L | 7.7 L | .9 L | 1.3 L |
| COMPRESSION SACK | S - 10L to 3.3L | S - 10L to 3.3L | Stuff Sack | Stuff Sack |
| FILL WEIGHT | 21.9 oz | 24.7oz | 3.5oz | 4.1oz |
| FITS UP TO HEIGHT | 6 ft | 6 ft 6 in | 6 ft | 6 ft 6 in |
| SEASON RATING | 3.5 Season | 3.5 Season | Summer or Sleeping Bag Liner | Summer or Sleeping Bag Liner |
| TEMPERATURE RATING (EN LOWER LIMIT) | 5ºF | 5ºF | 50ºF | 50ºF |
| WOMEN'S TEMP RATING (EN COMFORT) | 18ºF | 18ºF | 54ºF | 54ºF |
