Our Spark Series bags is what you reach for when you need a high performance sleeping bag but don’t want to be weighed down by one.
The Spark Series spans everything from an ultralight liner to an expedition weight mid-winter bag. While the end usage is very different, they reflect a design ethos of matching weather conditions to the lightest bag possible.

Technical features

Features

• Ultralight 7D fabrics for minimal weight and packed size
• RDS 850+ Loft Premium Goose ULTRA-DRY Down for maximum insulation value
• Vertical chest baffles prevent down migration and cold spots
• Sewn through box baffle construction to minimise weight and keep down in position
• Ultra-Sil stuff sack
• Note: Cannot be zipped together with other sleeping bags
• Contoured mummy shape for efficient insulation
• Ideal for mid-summer fast hikes or adventure racing
• Doubles as a liner to significantly boost the warmth of a second bag