The Sea to Summit Spark III Ultralight Sleeping Bag -8C is part of the Spark Ultralight Mummy Sleeping Bag Series, offering a range of options from a liner to a mid-winter sleeping bag. Crafted with premium materials and a minimalist design, this sleeping bag delivers top-notch performance.

Despite its ultralight construction, the Spark III provides a snug fit with enough room for movement, making it ideal for performance-driven backcountry adventurers.

Features:

• ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)
• 10D shell and 7D liner materials for exceptional lightweight and compactness
• Includes lightweight Ultra-Sil compression bag and storage cell
• Zipper-length tailored for weight-saving efficiency
• Shape Broader mummy shape