Product details
Sea to Summit Spark 30°F Unisex
Ultralight unisex mummy down sleeping bag for backpacking, with a hood, half-length side zip, and a 30°F ISO lower-limit rating.
Where to buy
- Sea to SummitShop at Sea to Summit
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Key features
Hybrid baffles
Box baffles at the torso and sewn-through construction around the legs.
Half-length zipper
YKK #5 side zipper with a snag-reducing plow; no footbox zipper and cannot open flat as a quilt.
Hood and draft protection
Technical hood and zipper draft tube help retain heat.
Hydrophobic down
RDS-certified goose down uses a non-PFAS water-repellent treatment; this does not make the bag waterproof.
Specifications
Specifications
- ISO Comfort
- 39 °F
- ISO Lower Limit
- 30 °F
- Bag-only weight, Regular
- 493 g
- Bag-only weight, Long
- 536 g
- Fill weight, Regular
- 265 g
- Fill weight, Long
- 305 g
- Compressed volume, Regular
- 4.5 L
- Compressed volume, Long
- 5.1 L
- Manufacturer SKU, Regular
- S2123
- Manufacturer SKU, Long
- S2124
- Shoulder / hip / foot circumference, Regular
- 61 / 53.1 / 40.2 in
- Shoulder / hip / foot circumference, Long
- 65 / 57.1 / 44.1 in
- Bag dimensions, Regular
- 196 × 77.5 cm
- Bag dimensions, Long
- 211 × 82.5 cm
- Packed weight, Regular
- 558 g
- Packed weight, Long
- 601 g
- Packed dimensions, Regular and Long
- 34 × 19.5 × 13.5 cm
Product details
- Dimensions
- Bag dimensions: Regular 196 × 77.5 cm; Long 211 × 82.5 cm. Maximum recommended user height: Regular 185 cm; Long 198 cm. Packed dimensions for either 30°F size: 34 × 19.5 × 13.5 cm.
- Materials
- Shell and lining: 10D nylon. Fill: RDS-certified 850+ fill-power 90/10 goose down, with non-PFAS Ultra-Dry treatment. Shell has non-PFAS DWR.
- Warranty
- Limited lifetime coverage for manufacturing defects during normal use, for the original owner with proof of purchase from Sea to Summit or an authorized reseller. Excludes ordinary wear, aging, accidents, misuse, and improper care; remedies may be repair, replacement, or credit. Full terms govern.
