Sea to Summit Spark 50-Degree Ultralight Down Sleeping Bag Liner

The Sea to Summit Spark 50-Degree Ultralight Down Sleeping Bag Liner is a technical down bag, engineered for warmth at the lightest weight and smallest compressed size. Ideal for summer backpacking, bike packing, and touring, it can also be used as a liner with another sleeping bag/ High-loft, 850 fill power down insulation (Responsible Down Standard certified) is treated with proprietary ULTRA-DRY Down to improve reaction to moisture, retaining loft and performance in rugged conditions. The contoured mummy shape provides adequate room for a natural sleeping position; sewn-through construction. The ultralight 10D nylon shell with 7D liner fabric offers cutting-edge packability and warmth. A weight-saving YKK zipper is one-third length, on the left side. The Sea to Summit Spark 50-Degree Ultralight Down Sleeping Bag Liner is available in two sizes: Regular (max user height of six feet) and Long (max user height of six feet six inches). Includes Ultra-Sil compression sack and storage cube. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.

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B0B52KTPXT

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