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

• Contoured mummy shape for efficient insulation
• Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency
• Includes lightweight Ultra-Sil™ Nano compression bag for compact storage
• Vertical box baffles in the torso area accommodates extra down and boosts warmth around the core, vertical baffles on chest optimises positions of down to prevent it moving during use
• Lower part of the bag uses a sewn through horizontal baffle construction to minimise weight
• ½ zip with two sliders aids access and allows ventilation from mid-section of bag
• Draft tube prevents heat loss through the zipper
• Includes hood draft collar