Ultralight and packable performance sleeping bag with increased breathability in shell and liner fabrics
+ View tech specsIf you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS-certified 850+ fillpower goose down treated with a non-PFAS Ultra-Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super-breathable 10 denier liner fabric, while a 10D shell with a non-PFAS DWR plus a highly water repellent hood and footbox fabric shed wind and condensation. The full-length zipper model can be zipped to an equivalent Women's Spark for comfort that couples can share.
-18°C Regular | |
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Bag Weight | 1113g |
Compressed Volume | 9.9 L |
Compression Sack | 20 L |
Fill Weight | 840 g |
Fits Up To Height | 6 ft 1 in |
Temperature Rating (ISO Lower Limit) | -18°C |
Women's Temp Rating (ISO Comfort) | -10°C |
No - the ultralight Spark does not have a footbox zipper. For this feature, see the Spark Pro or Ascent sleeping bags
The Spark is designed to be ultralight, so the fit is a little more snug than a comfort-sleeping bag like the Ascent. But - it is still cut to provide room to move.
Any of the Spark/Women's Spark models with full-length zippers can be zipped together