Using 850+ loft goose down treated with the amazing moisture repelling ULTRA-DRY Down, a micro-weight 7D shell and 10D lining, the Spark is one of the best warmth for weight minimalist sleeping bags available.

Features:

• Ultralight 7D and 10D fabrics for minimal weight and packed size


• RDS 850+ Loft Premium Goose ULTRA-DRY Down for maximum insulation value


• Contoured mummy shape for comfort and efficient insulation


• Vertical chest baffles prevent down migration and cold spots


• Sewn through construction minimises weight


• Sewn through vertical baffles on chest optimises position of down to prevent it moving during use


• ½ zip with single slider aids access while keeping weight to a minimum


• 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